#631C84#631C84

#631C84 is a dark, vivid purple. Relative luminance 0.051; OKLCH L 39.4% C 0.166 H 312.2°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#631C84
RGB	rgb(99, 28, 132)
HSL	hsl(281, 65%, 31%)
HSV	hsv(281, 79%, 52%)
CMYK	cmyk(25%, 78.8%, 0%, 48.2%)
CIE-LAB	lab(27.16, 47.84, -43.50)
CIE-LCH	lch(27.16, 64.66, 317.72°)
OKLab	oklab(39.35% 0.1117 -0.1231)
OKLCH	oklch(39.35% 0.166 312.2)
XYZ	xyz(9.7249, 5.1494, 22.3070)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631C84 #3D841C

analogous

#2F1C84 #631C84 #841C71

triadic

#631C84 #84631C #1C8463

tetradic

#631C84 #842F1C #3D841C #1C7184

square

#631C84 #842F1C #3D841C #1C7184

split-complementary

#631C84 #71841C #1C842F

monochromatic

#17071F #3D1152 #631C84 #8927B6 #A843D7

Accessibility & contrast

On white

10.35

#631C84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#631C84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631C84

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631C84	#FFFFFF	#000000	##FFFFFF
##631C84	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D87

Deuteranopia (green-blind)

#0B4282

Tritanopia (blue-blind)

#5F354F

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #631c84;
/* rgb */ color: rgb(99, 28, 132);
/* oklch */ color: oklch(39.4% 0.166 312.2);

Tailwind

colors: {
  custom: {
    50: '#9361a8',
    500: '#631c84',
    950: '#000000',
  },
}

SCSS

$custom: #631c84;
$custom-light: #9361a8;
$custom-dark: #000000;

JSON

{
  "hex": "#631c84",
  "rgb": {
    "r": 99,
    "g": 28,
    "b": 132
  },
  "hsl": {
    "h": 280.962,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.3935,
    "c": 0.16622,
    "h": 312.2
  },
  "luminance": 0.05149
}

Semantic roles & 50–950 ramp

primary

#631C84

secondary

#69B745

accent

#E84075

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #631C84

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →