#631C8A#631C8A

#631C8A is a dark, vivid violet. Relative luminance 0.053; OKLCH L 39.8% C 0.172 H 309.9°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#631C8A
RGB	rgb(99, 28, 138)
HSL	hsl(279, 66%, 33%)
HSV	hsv(279, 80%, 54%)
CMYK	cmyk(28.3%, 79.7%, 0%, 45.9%)
CIE-LAB	lab(27.62, 49.17, -46.49)
CIE-LCH	lch(27.62, 67.66, 316.60°)
OKLab	oklab(39.83% 0.1105 -0.1319)
OKLCH	oklch(39.83% 0.172 309.9)
XYZ	xyz(10.1474, 5.3184, 24.5318)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631C8A #438A1C

analogous

#2C1C8A #631C8A #8A1C7A

triadic

#631C8A #8A631C #1C8A63

tetradic

#631C8A #8A2C1C #438A1C #1C7A8A

square

#631C8A #8A2C1C #438A1C #1C7A8A

split-complementary

#631C8A #7A8A1C #1C8A2C

monochromatic

#1A0724 #3F1257 #631C8A #8726BD #A647DA

Accessibility & contrast

On white

10.18

#631C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#631C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631C8A

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631C8A	#FFFFFF	#000000	##FFFFFF
##631C8A	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8D

Deuteranopia (green-blind)

#004288

Tritanopia (blue-blind)

#5D3753

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #631c8a;
/* rgb */ color: rgb(99, 28, 138);
/* oklch */ color: oklch(39.8% 0.172 309.9);

Tailwind

colors: {
  custom: {
    50: '#9461ad',
    500: '#631c8a',
    950: '#000000',
  },
}

SCSS

$custom: #631c8a;
$custom-light: #9461ad;
$custom-dark: #000000;

JSON

{
  "hex": "#631c8a",
  "rgb": {
    "r": 99,
    "g": 28,
    "b": 138
  },
  "hsl": {
    "h": 278.727,
    "s": 66.265,
    "l": 32.549
  },
  "oklch": {
    "l": 0.39826,
    "c": 0.17203,
    "h": 309.9
  },
  "luminance": 0.05318
}

Semantic roles & 50–950 ramp

primary

#631C8A

secondary

#70BB46

accent

#E93F7B

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #631C8A

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

Preview Lab → · Contrast checker → · Palette generator →