#631FB0#631FB0

#631FB0 is a dark, highly saturated violet. Relative luminance 0.068; OKLCH L 43.4% C 0.207 H 298.0°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#631FB0
RGB	rgb(99, 31, 176)
HSL	hsl(268, 70%, 41%)
HSV	hsv(268, 82%, 69%)
CMYK	cmyk(43.8%, 82.4%, 0%, 31%)
CIE-LAB	lab(31.27, 56.93, -63.70)
CIE-LCH	lch(31.27, 85.43, 311.79°)
OKLab	oklab(43.38% 0.0972 -0.1824)
OKLCH	oklch(43.38% 0.207 298)
XYZ	xyz(13.4700, 6.7670, 41.6623)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631FB0 #6CB01F

analogous

#1F23B0 #631FB0 #AB1FB0

triadic

#631FB0 #B0631F #1FB063

tetradic

#631FB0 #B01F23 #6CB01F #1FB0AB

square

#631FB0 #B01F23 #6CB01F #1FB0AB

split-complementary

#631FB0 #B0AB1F #23B01F

monochromatic

#280D48 #46167C #631FB0 #8131DB #A165E4

Accessibility & contrast

On white

8.92

#631FB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#631FB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631FB0

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631FB0	#FFFFFF	#000000	##FFFFFF
##631FB0	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AB4

Deuteranopia (green-blind)

#0048AD

Tritanopia (blue-blind)

#4F4969

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #631fb0;
/* rgb */ color: rgb(99, 31, 176);
/* oklch */ color: oklch(43.4% 0.207 298.0);

Tailwind

colors: {
  custom: {
    50: '#9765c9',
    500: '#631fb0',
    950: '#000000',
  },
}

SCSS

$custom: #631fb0;
$custom-light: #9765c9;
$custom-dark: #000000;

JSON

{
  "hex": "#631fb0",
  "rgb": {
    "r": 99,
    "g": 31,
    "b": 176
  },
  "hsl": {
    "h": 268.138,
    "s": 70.048,
    "l": 40.588
  },
  "oklch": {
    "l": 0.43375,
    "c": 0.20671,
    "h": 298
  },
  "luminance": 0.06767
}

Semantic roles & 50–950 ramp

primary

#631FB0

secondary

#99C962

accent

#ED3B99

background

#F9F6FC

surface

#F2EBF8

border

#CCC6D1

text

#0F0613

muted

#7E7A82

Preview Lab

Preview with #631FB0

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

Preview Lab → · Contrast checker → · Palette generator →