#631B41#631B41

#631B41 is a dark, moderate pink. Relative luminance 0.038; OKLCH L 35.1% C 0.111 H 351.8°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#631B41
RGB	rgb(99, 27, 65)
HSL	hsl(328, 57%, 25%)
HSV	hsv(328, 73%, 39%)
CMYK	cmyk(0%, 72.7%, 34.3%, 61.2%)
CIE-LAB	lab(23.06, 36.01, -6.11)
CIE-LCH	lch(23.06, 36.52, 350.37°)
OKLab	oklab(35.14% 0.1099 -0.0158)
OKLCH	oklch(35.14% 0.111 351.8)
XYZ	xyz(6.4920, 3.8189, 5.3952)
Luminance	0.0382 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B41 #1B633D

analogous

#611B63 #631B41 #631B1D

triadic

#631B41 #41631B #1B4163

tetradic

#631B41 #63611B #1B633D #1B1D63

square

#631B41 #63611B #1B633D #1B1D63

split-complementary

#631B41 #1D631B #1B6361

monochromatic

#180710 #330E21 #631B41 #932861 #C33580

Accessibility & contrast

On white

11.91

#631B41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#631B41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B41

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B41	#FFFFFF	#000000	##FFFFFF
##631B41	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#262F42

Deuteranopia (green-blind)

#3B3C3F

Tritanopia (blue-blind)

#6B162B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #631b41;
/* rgb */ color: rgb(99, 27, 65);
/* oklch */ color: oklch(35.1% 0.111 351.8);

Tailwind

colors: {
  custom: {
    50: '#935e75',
    500: '#631b41',
    950: '#000000',
  },
}

SCSS

$custom: #631b41;
$custom-light: #935e75;
$custom-dark: #000000;

JSON

{
  "hex": "#631b41",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 65
  },
  "hsl": {
    "h": 328.333,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.35138,
    "c": 0.11107,
    "h": 351.8
  },
  "luminance": 0.03818
}

Semantic roles & 50–950 ramp

primary

#631B41

secondary

#41986A

accent

#E09047

background

#F9F5F7

surface

#F2E9ED

border

#CCC5C8

text

#0D0508

muted

#7E797B

Preview Lab

Preview with #631B41

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

Preview Lab → · Contrast checker → · Palette generator →