#cc55ff

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

HEX
#cc55ff
RGB
rgb(204, 85, 255)
HSL
hsl(282, 100%, 67%)
OKLCH
oklch(67.4% 0.251 313.9)
CMYK
20% 67% 0% 0%
Relative luminance Relative luminance: a color's brightness from 0 (black) to 1 (white). It is used to compute WCAG contrast.
0.2655
Hue Hue: the kind of a color (red, orange, yellow…). We group the hue wheel into 12 sectors.
Violet
Nearest name Nearest name: the closest CSS standard color name to this color.
mediumorchid

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 3.33:1 -65
Black text 6.31:1 44
As text
White background 3.33:1 60
Black background 6.31:1 -42

Color harmonies

Complementary Complementary: the opposite color on the wheel (180°). The two make each other pop.

Analogous Analogous: neighbors on the wheel (about ±15°). They make a cohesive palette.

Triadic Triadic: three colors evenly spaced 120° apart. Balanced and lively.

Split complementary Split complementary: the two colors beside the complement (180° ± 30°). Softer than a straight complement.

Tetradic Tetradic: four colors evenly spaced 90° apart. Good for multi-accent palettes.

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 6.31:1 APCA (Lc) 44

As background (white text)

Ratio 3.33:1 APCA (Lc) -65

As text (white background)

Ratio 3.33:1 APCA (Lc) 60

As text (black background)

Ratio 6.31:1 APCA (Lc) -42