#631C8D#631C8D

#631C8D is a dark, vivid violet. Relative luminance 0.054; OKLCH L 40.1% C 0.175 H 308.9°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#631C8D
RGB	rgb(99, 28, 141)
HSL	hsl(278, 67%, 33%)
HSV	hsv(278, 80%, 55%)
CMYK	cmyk(29.8%, 80.1%, 0%, 44.7%)
CIE-LAB	lab(27.86, 49.84, -47.96)
CIE-LCH	lch(27.86, 69.17, 316.10°)
OKLab	oklab(40.07% 0.1098 -0.1362)
OKLCH	oklch(40.07% 0.175 308.9)
XYZ	xyz(10.3676, 5.4064, 25.6915)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631C8D #468D1C

analogous

#2A1C8D #631C8D #8D1C7E

triadic

#631C8D #8D631C #1C8D63

tetradic

#631C8D #8D2A1C #468D1C #1C7E8D

square

#631C8D #8D2A1C #468D1C #1C7E8D

split-complementary

#631C8D #7E8D1C #1C8D2A

monochromatic

#1B0827 #3F125A #631C8D #8726C0 #A449DB

Accessibility & contrast

On white

10.09

#631C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#631C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631C8D

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631C8D	#FFFFFF	#000000	##FFFFFF
##631C8D	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F90

Deuteranopia (green-blind)

#00438B

Tritanopia (blue-blind)

#5C3954

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #631c8d;
/* rgb */ color: rgb(99, 28, 141);
/* oklch */ color: oklch(40.1% 0.175 308.9);

Tailwind

colors: {
  custom: {
    50: '#9461af',
    500: '#631c8d',
    950: '#000000',
  },
}

SCSS

$custom: #631c8d;
$custom-light: #9461af;
$custom-dark: #000000;

JSON

{
  "hex": "#631c8d",
  "rgb": {
    "r": 99,
    "g": 28,
    "b": 141
  },
  "hsl": {
    "h": 277.699,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.40069,
    "c": 0.17493,
    "h": 308.9
  },
  "luminance": 0.05406
}

Semantic roles & 50–950 ramp

primary

#631C8D

secondary

#73BD48

accent

#EA3E7E

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0510

muted

#7E7A7F

Preview Lab

Preview with #631C8D

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

Preview Lab → · Contrast checker → · Palette generator →