Color Picker & Converter
Pick colours visually and instantly convert between HEX, RGB, HSL, and HSV formats. Generate accessible colour palettes, check contrast ratios against WCAG accessibility standards, copy colour values with a single click, and explore complementary and analogous colour harmonies. Perfect for web developers, UI designers, and digital artists.
RGB Sliders
Color Values
Shades & Tints
Click any shade to use it. Dark → Light (left to right).
Color Harmonies
Complementary
Analogous
Triadic
Saved Colors
Color Details
Contrast Check
Colour Format Guide
HEX — #RRGGBB
6-digit hexadecimal, e.g. #FF5733. Most common in HTML/CSS. Can be shortened to 3 digits when pairs match: #FFF.
RGB — rgb(R, G, B)
Red, Green, Blue each 0–255, e.g. rgb(255, 87, 51). Use rgba() for transparency.
HSL — hsl(H, S%, L%)
Hue 0–360°, Saturation 0–100%, Lightness 0–100%. More intuitive for designers — easy to adjust brightness/saturation independently.
WCAG Colour Contrast
WCAG (Web Content Accessibility Guidelines) defines contrast ratio requirements to ensure text is readable for users with low vision or colour blindness.
Colour Psychology
- Red — urgency, passion, danger. Used in CTAs, food brands.
- Blue — trust, calm, technology. Used in finance, tech.
- Green — growth, success, health. Used in eco and finance brands.
- Yellow — optimism, warmth, attention. Used in retail warnings.
- Purple — luxury, creativity, wisdom. Used in premium brands.
- Orange — energy, enthusiasm, affordability.
Color Picker Use Cases
Web Design
Pick and convert colours for CSS stylesheets, Tailwind configs, and design tokens.
Accessibility
Check contrast ratios against WCAG AA/AAA to ensure readable text for all users.
Brand Colours
Convert brand hex colours to RGB/HSL for use across different design tools.
Digital Art
Explore colour harmonies — complementary, analogous, triadic — for artwork.
Frequently Asked Questions
Related Tools
Mastering Colour for Web Design and Accessibility
Colour is one of the most powerful tools in a designer's arsenal. It communicates brand identity, directs user attention, establishes visual hierarchy, and evokes emotional responses — all within milliseconds of a user landing on a page. Yet working with colour in web development is deceptively complex. Developers must navigate multiple colour spaces (HEX, RGB, HSL, HSV), ensure accessibility compliance with WCAG contrast ratios, maintain consistency across design systems, and translate between formats used by different tools and frameworks. A robust colour picker that converts between formats instantly is not a luxury — it is essential infrastructure for any design workflow.
Colour Accessibility and WCAG Compliance
Approximately 300 million people worldwide have colour vision deficiency, and many more have low vision that makes poor contrast unreadable. The Web Content Accessibility Guidelines (WCAG) set minimum contrast ratios: 4.5:1 for normal text (AA) and 7:1 for enhanced readability (AAA). Failing these requirements does not just exclude users — in many jurisdictions, it creates legal liability under disability discrimination legislation. Our colour picker includes built-in contrast checking so you can verify text-background pairs meet WCAG standards before writing a single line of CSS. This is especially important for design systems where colour tokens are reused across hundreds of components — a poor choice at the token level cascades through the entire product.
Building Design Systems with Colour Tokens
Modern design systems define colour as semantic tokens — not raw hex values scattered through stylesheets. A well-structured palette includes primary, secondary, and accent colours, each with a scale of shades from 50 to 950. HSL is the most intuitive format for building these scales: keep the hue constant, then systematically adjust saturation and lightness to create consistent tints and shades. Our colour picker makes this workflow seamless by showing all four formats simultaneously and letting you adjust individual channels visually. For text formatting and typography tasks, explore the Text Transformer. For converting units in your design tokens, try the Unit Converter. Preview your HTML designs with the HTML Viewer and render Markdown documentation with the Markdown Viewer. Browse all tools on the homepage or learn more about DailyUtil.