#631D8E#631D8E

#631D8E is a dark, vivid violet. Relative luminance 0.055; OKLCH L 40.2% C 0.175 H 308.4°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#631D8E
RGB	rgb(99, 29, 142)
HSL	hsl(277, 66%, 34%)
HSV	hsv(277, 80%, 56%)
CMYK	cmyk(30.3%, 79.6%, 0%, 44.3%)
CIE-LAB	lab(28.07, 49.69, -48.24)
CIE-LCH	lch(28.07, 69.25, 315.85°)
OKLab	oklab(40.24% 0.1087 -0.137)
OKLCH	oklch(40.24% 0.175 308.4)
XYZ	xyz(10.4664, 5.4845, 26.0932)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631D8E #488E1D

analogous

#2A1D8E #631D8E #8E1D80

triadic

#631D8E #8E631D #1D8E63

tetradic

#631D8E #8E2A1D #488E1D #1D808E

square

#631D8E #8E2A1D #488E1D #1D808E

split-complementary

#631D8E #808E1D #1D8E2A

monochromatic

#1C0828 #40135B #631D8E #8627C1 #A44BDA

Accessibility & contrast

On white

10.02

#631D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#631D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631D8E

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631D8E	#FFFFFF	#000000	##FFFFFF
##631D8E	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004091

Deuteranopia (green-blind)

#00438C

Tritanopia (blue-blind)

#5C3955

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #631d8e;
/* rgb */ color: rgb(99, 29, 142);
/* oklch */ color: oklch(40.2% 0.175 308.4);

Tailwind

colors: {
  custom: {
    50: '#9462b0',
    500: '#631d8e',
    950: '#000000',
  },
}

SCSS

$custom: #631d8e;
$custom-light: #9462b0;
$custom-dark: #000000;

JSON

{
  "hex": "#631d8e",
  "rgb": {
    "r": 99,
    "g": 29,
    "b": 142
  },
  "hsl": {
    "h": 277.168,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.40241,
    "c": 0.17489,
    "h": 308.4
  },
  "luminance": 0.05484
}

Semantic roles & 50–950 ramp

primary

#631D8E

secondary

#76BD4A

accent

#E93F80

background

#F9F6FA

surface

#F2EBF5

border

#CCC6CF

text

#0E0511

muted

#7E7A80

Preview Lab

Preview with #631D8E

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

Preview Lab → · Contrast checker → · Palette generator →