#631B72#631B72

#631B72 is a dark, vivid purple. Relative luminance 0.047; OKLCH L 37.9% C 0.150 H 320.1°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#631B72
RGB	rgb(99, 27, 114)
HSL	hsl(290, 62%, 28%)
HSV	hsv(290, 76%, 45%)
CMYK	cmyk(13.2%, 76.3%, 0%, 55.3%)
CIE-LAB	lab(25.72, 44.42, -34.40)
CIE-LCH	lch(25.72, 56.19, 322.25°)
OKLab	oklab(37.92% 0.1152 -0.0964)
OKLCH	oklch(37.92% 0.15 320.1)
XYZ	xyz(8.5744, 4.6519, 16.3626)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B72 #2A721B

analogous

#371B72 #631B72 #721B56

triadic

#631B72 #72631B #1B7263

tetradic

#631B72 #72371B #2A721B #1B5672

square

#631B72 #72371B #2A721B #1B5672

split-complementary

#631B72 #56721B #1B7237

monochromatic

#150619 #380F41 #631B72 #8E27A3 #B638D0

Accessibility & contrast

On white

10.88

#631B72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#631B72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B72

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B72	#FFFFFF	#000000	##FFFFFF
##631B72	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003874

Deuteranopia (green-blind)

#233F70

Tritanopia (blue-blind)

#632C45

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #631b72;
/* rgb */ color: rgb(99, 27, 114);
/* oklch */ color: oklch(37.9% 0.150 320.1);

Tailwind

colors: {
  custom: {
    50: '#935f9b',
    500: '#631b72',
    950: '#000000',
  },
}

SCSS

$custom: #631b72;
$custom-light: #935f9b;
$custom-dark: #000000;

JSON

{
  "hex": "#631b72",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 114
  },
  "hsl": {
    "h": 289.655,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.37919,
    "c": 0.15025,
    "h": 320.1
  },
  "luminance": 0.04651
}

Semantic roles & 50–950 ramp

primary

#631B72

secondary

#53A742

accent

#E5435F

background

#F9F5F9

surface

#F2EAF2

border

#CCC6CC

text

#0D050E

muted

#7E797E

Preview Lab

Preview with #631B72

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

Preview Lab → · Contrast checker → · Palette generator →