#631D8A#631D8A

#631D8A is a dark, vivid violet. Relative luminance 0.054; OKLCH L 39.9% C 0.171 H 309.8°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#631D8A
RGB	rgb(99, 29, 138)
HSL	hsl(279, 65%, 33%)
HSV	hsv(279, 79%, 54%)
CMYK	cmyk(28.3%, 79%, 0%, 45.9%)
CIE-LAB	lab(27.75, 48.79, -46.27)
CIE-LCH	lch(27.75, 67.24, 316.51°)
OKLab	oklab(39.92% 0.1096 -0.1313)
OKLCH	oklch(39.92% 0.171 309.8)
XYZ	xyz(10.1715, 5.3666, 24.5399)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D8A #448A1D

analogous

#2C1D8A #631D8A #8A1D7A

triadic

#631D8A #8A631D #1D8A63

tetradic

#631D8A #8A2C1D #448A1D #1D7A8A

square

#631D8A #8A2C1D #448A1D #1D7A8A

split-complementary

#631D8A #7A8A1D #1D8A2C

monochromatic

#1A0825 #3F1257 #631D8A #8728BD #A549D9

Accessibility & contrast

On white

10.13

#631D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#631D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D8A

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D8A	#FFFFFF	#000000	##FFFFFF
##631D8A	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8D

Deuteranopia (green-blind)

#004288

Tritanopia (blue-blind)

#5D3853

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #631d8a;
/* rgb */ color: rgb(99, 29, 138);
/* oklch */ color: oklch(39.9% 0.171 309.8);

Tailwind

colors: {
  custom: {
    50: '#9462ad',
    500: '#631d8a',
    950: '#000000',
  },
}

SCSS

$custom: #631d8a;
$custom-light: #9462ad;
$custom-dark: #000000;

JSON

{
  "hex": "#631d8a",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 138
  },
  "hsl": {
    "h": 278.532,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.39918,
    "c": 0.17098,
    "h": 309.8
  },
  "luminance": 0.05366
}

Semantic roles & 50–950 ramp

primary

#631D8A

secondary

#71BB48

accent

#E8407C

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #631D8A

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

Preview Lab → · Contrast checker → · Palette generator →