Colour Converter

on white
on pattern
on black
Hue · Saturation · Brightness
Hue
H: 0°
Sat
S: 0%
Bright
B: 0%
RGB
Red
R: 0
Green
G: 0
Blue
B: 0
Alpha
Alpha
A: 1
OKLCH (perceptually uniform)
L
L: 0
Chroma
C: 0
Hue
H: 0°
Values — click any row to copy
name
hex
rgb
hsl
hsb
hwb
oklch
oklab
HDR — brighter than white

This browser can't set up a WebGPU HDR canvas, so the demo below is hidden. Open this page in Safari 26+ or a Chromium browser on an HDR display — like your Studio Display XDR — to see colours rendered brighter than #fff.

Your display isn't reporting HDR capability, so the boosted swatch may look identical to the SDR one. Connect an HDR display to see the effect.

SDR — max #fff
HDR — WebGPU
Bright
×2 · 406 nits

×1 is ordinary white; higher values push into your display's HDR headroom. Browsers can't report how much headroom a screen has, so this is a relative control — push until it stops getting brighter and that's your display's ceiling. It's modest on a laptop panel and enormous on a Pro Display XDR.

rec2100-pq
reference
Capability report

Enter any CSS colour — hex, rgb(), hsl(), oklch(), oklab(), hwb(), or a named colour. Drag the picker or sliders to adjust. The translucent variant renders identically on white but darker on dark backgrounds — useful for dual-theme palettes.

Want a coloured light across multiple monitors? Light — useful for video/photo shoots.