#631F9D#631F9D

#631F9D is a dark, vivid violet. Relative luminance 0.061; OKLCH L 41.7% C 0.188 H 303.3°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#631F9D
RGB	rgb(99, 31, 157)
HSL	hsl(272, 67%, 37%)
HSV	hsv(272, 80%, 62%)
CMYK	cmyk(36.9%, 80.3%, 0%, 38.4%)
CIE-LAB	lab(29.58, 52.40, -55.00)
CIE-LCH	lch(29.58, 75.96, 313.61°)
OKLab	oklab(41.68% 0.1031 -0.1569)
OKLCH	oklch(41.68% 0.188 303.3)
XYZ	xyz(11.7199, 6.0669, 32.4453)
Luminance	0.0607 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631F9D #599D1F

analogous

#241F9D #631F9D #9D1F98

triadic

#631F9D #9D631F #1F9D63

tetradic

#631F9D #9D241F #599D1F #1F989D

square

#631F9D #9D241F #599D1F #1F989D

split-complementary

#631F9D #989D1F #1F9D24

monochromatic

#230B37 #43156A #631F9D #8329D0 #A158DE

Accessibility & contrast

On white

9.49

#631F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#631F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631F9D

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631F9D	#FFFFFF	#000000	##FFFFFF
##631F9D	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A0

Deuteranopia (green-blind)

#00459B

Tritanopia (blue-blind)

#57415E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #631f9d;
/* rgb */ color: rgb(99, 31, 157);
/* oklch */ color: oklch(41.7% 0.188 303.3);

Tailwind

colors: {
  custom: {
    50: '#9563bb',
    500: '#631f9d',
    950: '#000000',
  },
}

SCSS

$custom: #631f9d;
$custom-light: #9563bb;
$custom-dark: #000000;

JSON

{
  "hex": "#631f9d",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 157
  },
  "hsl": {
    "h": 272.381,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.41683,
    "c": 0.18774,
    "h": 303.3
  },
  "luminance": 0.06067
}

Semantic roles & 50–950 ramp

primary

#631F9D

secondary

#88C256

accent

#EA3E8D

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0612

muted

#7E7A81

Preview Lab

Preview with #631F9D

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

Preview Lab → · Contrast checker → · Palette generator →