#631F8A#631F8A

#631F8A is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.1% C 0.169 H 309.6°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#631F8A
RGB	rgb(99, 31, 138)
HSL	hsl(278, 63%, 33%)
HSV	hsv(278, 78%, 54%)
CMYK	cmyk(28.3%, 77.5%, 0%, 45.9%)
CIE-LAB	lab(28.03, 48.00, -45.83)
CIE-LCH	lch(28.03, 66.37, 316.33°)
OKLab	oklab(40.11% 0.1077 -0.13)
OKLCH	oklch(40.11% 0.169 309.6)
XYZ	xyz(10.2221, 5.4678, 24.5567)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631F8A #468A1F

analogous

#2D1F8A #631F8A #8A1F7B

triadic

#631F8A #8A631F #1F8A63

tetradic

#631F8A #8A2D1F #468A1F #1F7B8A

square

#631F8A #8A2D1F #468A1F #1F7B8A

split-complementary

#631F8A #7B8A1F #1F8A2D

monochromatic

#1B0926 #3F1458 #631F8A #872ABC #A44CD7

Accessibility & contrast

On white

10.03

#631F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#631F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631F8A

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631F8A	#FFFFFF	#000000	##FFFFFF
##631F8A	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8D

Deuteranopia (green-blind)

#004388

Tritanopia (blue-blind)

#5D3953

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #631f8a;
/* rgb */ color: rgb(99, 31, 138);
/* oklch */ color: oklch(40.1% 0.169 309.6);

Tailwind

colors: {
  custom: {
    50: '#9462ad',
    500: '#631f8a',
    950: '#000000',
  },
}

SCSS

$custom: #631f8a;
$custom-light: #9462ad;
$custom-dark: #000000;

JSON

{
  "hex": "#631f8a",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 138
  },
  "hsl": {
    "h": 278.131,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.40111,
    "c": 0.1688,
    "h": 309.6
  },
  "luminance": 0.05468
}

Semantic roles & 50–950 ramp

primary

#631F8A

secondary

#73BA4B

accent

#E6417E

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0E0610

muted

#7E7A7F

Preview Lab

Preview with #631F8A

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

Preview Lab → · Contrast checker → · Palette generator →