Color Picker & Converter

Understanding Color Formats

Every color on a screen can be expressed in multiple formats, each useful in different contexts. HEX codes (#4C6DFF) are the most common in web development — compact, easy to copy, and universally supported. RGB (76, 109, 255) describes color as three channels of light: red, green, and blue, each ranging from 0 to 255. HSL (228°, 100%, 65%) describes color in terms humans think about naturally: hue (the color itself, as a degree on the color wheel), saturation (how vivid it is), and lightness (how bright or dark).

For web designers, HSL is often the most practical format for creating consistent palettes. Need a slightly lighter version of your brand blue? Increase the lightness value by 10-15%. Need a muted version? Reduce saturation. With HEX or RGB, achieving these adjustments requires manipulating three independent values simultaneously, which is unintuitive. With HSL, you modify a single property while keeping the others constant.

Color Accessibility

WCAG guidelines require a minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text against backgrounds. Light text on a light background or dark text on a dark background fails this threshold, making content unreadable for people with low vision or color blindness. Approximately 8% of men and 0.5% of women have some form of color blindness — if your website relies on color alone to convey information (red for errors, green for success), you are excluding millions of users.

The fix is straightforward: always pair color with another indicator (icons, text labels, patterns). And test your color choices against a contrast checker before committing. A beautiful design that nobody can read is not actually beautiful — it is a failure of its primary function.

Building a Color Palette

Professional palettes typically contain 5-7 colors: a primary brand color, a secondary accent, a success green, a warning yellow, an error red, and 2-3 neutral grays for text and backgrounds. Start with your primary color, then derive the others using color theory. Complementary colors sit opposite on the color wheel (blue and orange). Analogous colors sit adjacent (blue, blue-green, green). Triadic colors form a triangle (blue, red, yellow).

How do I convert HEX to RGB?

Split the hex code into pairs: #4C6DFF becomes 4C, 6D, FF. Convert each pair from hexadecimal to decimal: 4C=76, 6D=109, FF=255. Result: rgb(76, 109, 255). This calculator does it instantly.

What is the difference between RGB and RGBA?

RGBA adds an alpha channel for transparency, ranging from 0 (fully transparent) to 1 (fully opaque). rgba(76, 109, 255, 0.5) is the same blue at 50% transparency. Use RGBA for overlays, glassmorphism effects, and hover states.