#631B73#631B73

#631B73 is a dark, vivid purple. Relative luminance 0.047; OKLCH L 38.0% C 0.151 H 319.6°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#631B73
RGB	rgb(99, 27, 115)
HSL	hsl(289, 62%, 28%)
HSV	hsv(289, 77%, 45%)
CMYK	cmyk(13.9%, 76.5%, 0%, 54.9%)
CIE-LAB	lab(25.79, 44.63, -34.93)
CIE-LCH	lch(25.79, 56.67, 321.95°)
OKLab	oklab(37.99% 0.1152 -0.098)
OKLCH	oklch(37.99% 0.151 319.6)
XYZ	xyz(8.6316, 4.6747, 16.6640)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B73 #2B731B

analogous

#371B73 #631B73 #731B57

triadic

#631B73 #73631B #1B7363

tetradic

#631B73 #73371B #2B731B #1B5773

square

#631B73 #73371B #2B731B #1B5773

split-complementary

#631B73 #57731B #1B7337

monochromatic

#150619 #380F41 #631B73 #8E27A5 #B538D0

Accessibility & contrast

On white

10.85

#631B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#631B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B73

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B73	#FFFFFF	#000000	##FFFFFF
##631B73	1.00	10.85	1.93	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003875

Deuteranopia (green-blind)

#223F71

Tritanopia (blue-blind)

#632D45

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #631b73;
/* rgb */ color: rgb(99, 27, 115);
/* oklch */ color: oklch(38.0% 0.151 319.6);

Tailwind

colors: {
  custom: {
    50: '#93609c',
    500: '#631b73',
    950: '#000000',
  },
}

SCSS

$custom: #631b73;
$custom-light: #93609c;
$custom-dark: #000000;

JSON

{
  "hex": "#631b73",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 115
  },
  "hsl": {
    "h": 289.091,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.3799,
    "c": 0.15119,
    "h": 319.6
  },
  "luminance": 0.04674
}

Semantic roles & 50–950 ramp

primary

#631B73

secondary

#55A842

accent

#E54360

background

#F9F5F9

surface

#F2EAF2

border

#CCC6CC

text

#0D050E

muted

#7E797E

Preview Lab

Preview with #631B73

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

Preview Lab → · Contrast checker → · Palette generator →