#cccccc

Color values Color notations — HEX (hexadecimal), RGB (light primaries), HSL (hue/saturation/lightness), CMYK (print inks, approximate).

HEX
#cccccc
RGB
rgb(204, 204, 204)
HSL
hsl(0, 0%, 80%)
OKLCH
oklch(84.5% 0 0)
CMYK
0% 0% 0% 20%
Relative luminance Relative luminance: a color's brightness from 0 (black) to 1 (white). It is used to compute WCAG contrast.
0.6038
Hue Hue: the kind of a color (red, orange, yellow…). We group the hue wheel into 12 sectors.
Achromatic
Nearest name Nearest name: the closest CSS standard color name to this color.
lightgray

Contrast

Ratio Contrast ratio: the brightness difference between two colors, from 1:1 to 21:1. Higher is easier to read. APCA (Lc) APCA: a newer perceptual contrast measure from the WCAG 3 draft. Lc runs about 0–106; higher is easier to read. The sign shows polarity (dark text on light, or light on dark).
As background
White text 1.61:1 -31
Black text 13.08:1 77
As text
White background 1.61:1 27
Black background 13.08:1 -76

Color harmonies

Tone scale Tone scale: five steps that keep the hue but vary the lightness.

Shades & tints Shades & tints: lighter steps mixed toward white (tints) and darker steps mixed toward black (shades).

Impressions Impression: a tag for the mood a color evokes — warm, calm, vivid and so on.

Usage preview

As background (black text)

Ratio 13.08:1 APCA (Lc) 77

As background (white text)

Ratio 1.61:1 APCA (Lc) -31

As text (white background)

Ratio 1.61:1 APCA (Lc) 27

As text (black background)

Ratio 13.08:1 APCA (Lc) -76