GT
Design Tools

Color Converter

Convert between HEX, RGB, HSL, HSV, CMYK, LAB, and more while generating palettes and WCAG-ready contrasts.

Palette generator • Contrast checker • Copy-ready formats

Color console

Drop in HEX, RGB, HSL, or named colors. We normalize the value, sync the picker, and prep palettes instantly.

#3498db
Preview#3498db
Color insightsDark tone
Luminance
0.28
Temperature
cool
Contrast vs white
3.15:1

Color formats

Copy any notation ready for CSS, Figma, printers, or accessibility tooling.

HEX
#3498db
RGB
rgb(52, 152, 219)
HSL
hsl(204, 70%, 53%)
HSV
hsv(204, 76%, 86%)
CMYK
cmyk(76%, 31%, 0%, 14%)
LAB
lab(60, -6, -42)

Palette lab

Generate color harmonies instantly and copy chips straight into your toolkit.

Analogous

WCAG contrast checker

Preview ratios against any background and ensure AA/AAA compliance.

Show inspector

Popular colors

Load preset swatches to explore harmonies faster.

Brand lab guide for the Color Converter

Use the Color Converter as a shared lab where design, product, and engineering stress-test palettes across HEX, RGB, HSL, LAB, and contrast ratios.

920 words
BrandAccessibilityDesign Systems

Build a palette interview process

Treat every new color like a job candidate. When someone proposes a shade, drop the HEX value into the converter and interrogate the resulting representations. Compare RGB values to confirm screens render the hue consistently, review HSL to understand how saturation shifts under dark mode, and log LAB values for print conversations. Capture these readings in your design system docs so future designers know the precise fingerprints of approved hues. This habit also exposes duplicate colors masquerading under different names, helping you trim palette bloat.

Align designers and engineers on the same numbers

Design files often list colors as HEX while codebases rely on RGB or CSS variables. Open the converter during handoff meetings so both sides confirm they are referencing the same values. Engineers can copy the RGB string straight into CSS, while designers sanity-check that the perceptual brightness matches their intent. Because the converter exposes multiple formats at once, no one wastes time searching for secondary calculators or risking transcription errors.

Stress-test accessibility up front

The built-in contrast evaluation lets you vet a palette before it reaches QA. Feed candidate foreground and background colors into the tool and record the AA/AAA status for normal and large text. Keep a screenshot archive of these readings attached to design review tickets as objective proof that a color met accessibility requirements at approval time. When marketing requests a special campaign color, rerun the test and document the decision; if the shade fails, you have data-backed reasons to adjust the tone or reserve it for decorative accents only.

Support multi-surface products

Products now span marketing sites, native apps, dashboards, and emails. Each surface may require different color formats. Use the converter to generate swift exports: developers building SwiftUI themes copy UIColor initializers, web teams grab CSS variables, and brand partners prepping print collateral rely on CMYK approximations derived from LAB values. Store these mappings in your design tokens repository with links back to the converter session so future audits can trace the origin of each value.

Educate non-design stakeholders

Sales, support, and ops teams often need quick answers about hex codes for decks or event booths. Instead of granting design tool access, share a short Loom showing how to paste the primary color into the converter, read off the needed format, and copy it safely. Empowering adjacent teams with this tool reduces interruption and keeps the brand consistent even in scrappy contexts.

Automate guardrails

Pair the converter with a JSON file of approved colors. When someone proposes a new shade, run a script that compares its LAB delta against existing tokens. If the difference is negligible, the script suggests reusing an existing color to maintain cohesion. Document this workflow around the converter so folks understand that the goal is not to police creativity but to maintain clarity for engineers, printers, and accessibility reviewers alike.

The Color Converter becomes a brand laboratory when you use it to interrogate hues from multiple perspectives. Make it the default surface for palette proposals, accessibility sign-offs, and cross-platform handoffs so every color decision carries data, not guesswork.

Accessibility journal powered by the Color Converter

Maintain a living journal of color tests, contrast pit-stops, and motion-safe palettes using the converter as your measurement backbone.

890 words
AccessibilityQADesign Ops

Start a testing log

Create a simple doc—Notion, Confluence, or even Markdown in your repo—where every color decision gets logged. When you evaluate a foreground/background pair in the converter, record the HEX codes, measured contrast ratios, and pass/fail status. Include screenshots from the tool for traceability. Over time this log becomes your accessibility journal, proving due diligence during audits and reminding teammates which combinations are safe for different contexts.

Track seasonal experiments

Campaigns often introduce temporary colors. Use the converter to vet them quickly, then note start and end dates in your journal. If the same color returns next year, you already know whether it passed AA for body text or only worked as a background overlay. Pair each entry with the segment that approved it (marketing, partnerships, etc.) so stakeholders know who to consult before reusing the hue.

Coach QA and support teams

Share the journal with QA so they can replicate your tests without re-learning WCAG math. During regression cycles, they simply copy values from the log, paste them into the converter, and confirm ratios still pass after theme updates. Support agents benefit too: when customers ask about dark-mode readiness or contrast adjustments, reps can reference the journal to provide authoritative answers backed by converter screenshots.

Integrate with token pipelines

Store journal entries alongside your design tokens. When a developer updates a token, they also update the corresponding converter measurements. Automated checks can even parse the journal, raising alerts if a color lacks recent contrast data. This tight coupling ensures accessibility does not trail behind design experiments.

Celebrate wins and gaps

At the end of each quarter, review the journal to spotlight improvements (for example, "72 percent of primary pairings now hit AAA") and to identify gaps ("Charts still rely on low-contrast pastels"). Use those insights to plan backlog work. Because every datapoint traces back to the converter, no one questions the accuracy.

A disciplined journal anchored by the Color Converter keeps accessibility front-and-center. It demystifies compliance tasks, shortens QA cycles, and gives customer-facing teams confidence when discussing brand colors with the public.

About color formats

Everything happens in-browser via chroma.js so your palette never leaves the page.

Formats

  • • HEX · Web standard (#RRGGBB)
  • • RGB · Red, green, blue channels
  • • HSL · Hue, saturation, lightness
  • • HSV · Hue, saturation, value
  • • CMYK · Print separation
  • • LAB · Perceptual color space

Features

  • • Instant palette generation
  • • WCAG contrast assistant
  • • Harmonies & tints/shades
  • • Copy-ready formats
Pure frontend conversion · Powered by chroma.js