#631B59#631B59

#631B59 is a dark, vivid purple. Relative luminance 0.042; OKLCH L 36.3% C 0.128 H 334.0°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#631B59
RGB	rgb(99, 27, 89)
HSL	hsl(308, 57%, 25%)
HSV	hsv(308, 73%, 39%)
CMYK	cmyk(0%, 72.7%, 10.1%, 61.2%)
CIE-LAB	lab(24.19, 39.70, -20.54)
CIE-LCH	lch(24.19, 44.70, 332.65°)
OKLab	oklab(36.33% 0.1151 -0.0562)
OKLCH	oklch(36.33% 0.128 334)
XYZ	xyz(7.3407, 4.1584, 9.8653)
Luminance	0.0416 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B59 #1B6325

analogous

#491B63 #631B59 #631B35

triadic

#631B59 #59631B #1B5963

tetradic

#631B59 #63491B #1B6325 #1B3563

square

#631B59 #63491B #1B6325 #1B3563

split-complementary

#631B59 #35631B #1B6349

monochromatic

#180716 #330E2E #631B59 #932884 #C335AF

Accessibility & contrast

On white

11.47

#631B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#631B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B59

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B59	#FFFFFF	#000000	##FFFFFF
##631B59	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A335B

Deuteranopia (green-blind)

#323D57

Tritanopia (blue-blind)

#682137

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #631b59;
/* rgb */ color: rgb(99, 27, 89);
/* oklch */ color: oklch(36.3% 0.128 334.0);

Tailwind

colors: {
  custom: {
    50: '#925e88',
    500: '#631b59',
    950: '#000000',
  },
}

SCSS

$custom: #631b59;
$custom-light: #925e88;
$custom-dark: #000000;

JSON

{
  "hex": "#631b59",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 89
  },
  "hsl": {
    "h": 308.333,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.36327,
    "c": 0.12803,
    "h": 334
  },
  "luminance": 0.04158
}

Semantic roles & 50–950 ramp

primary

#631B59

secondary

#41984D

accent

#E05D47

background

#F9F5F8

surface

#F1E9EF

border

#CBC5CA

text

#0D050B

muted

#7E797C

Preview Lab

Preview with #631B59

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

Preview Lab → · Contrast checker → · Palette generator →