#631B4E#631B4E

#631B4E is a dark, moderate pink. Relative luminance 0.040; OKLCH L 35.7% C 0.119 H 341.6°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#631B4E
RGB	rgb(99, 27, 78)
HSL	hsl(318, 57%, 25%)
HSV	hsv(318, 73%, 39%)
CMYK	cmyk(0%, 72.7%, 21.2%, 61.2%)
CIE-LAB	lab(23.63, 37.90, -14.06)
CIE-LCH	lch(23.63, 40.42, 339.64°)
OKLab	oklab(35.74% 0.1133 -0.0378)
OKLCH	oklch(35.74% 0.119 341.6)
XYZ	xyz(6.9129, 3.9872, 7.6118)
Luminance	0.0399 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631B4E #1B6330

analogous

#541B63 #631B4E #631B2A

triadic

#631B4E #4E631B #1B4E63

tetradic

#631B4E #63541B #1B6330 #1B2A63

square

#631B4E #63541B #1B6330 #1B2A63

split-complementary

#631B4E #2A631B #1B6354

monochromatic

#180713 #330E28 #631B4E #932874 #C3359A

Accessibility & contrast

On white

11.68

#631B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#631B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631B4E

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631B4E	#FFFFFF	#000000	##FFFFFF
##631B4E	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21314F

Deuteranopia (green-blind)

#373D4C

Tritanopia (blue-blind)

#691C32

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #631b4e;
/* rgb */ color: rgb(99, 27, 78);
/* oklch */ color: oklch(35.7% 0.119 341.6);

Tailwind

colors: {
  custom: {
    50: '#925e7f',
    500: '#631b4e',
    950: '#000000',
  },
}

SCSS

$custom: #631b4e;
$custom-light: #925e7f;
$custom-dark: #000000;

JSON

{
  "hex": "#631b4e",
  "rgb": {
    "r": 99,
    "g": 27,
    "b": 78
  },
  "hsl": {
    "h": 317.5,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.35738,
    "c": 0.11945,
    "h": 341.6
  },
  "luminance": 0.03987
}

Semantic roles & 50–950 ramp

primary

#631B4E

secondary

#41985B

accent

#E07447

background

#F9F5F7

surface

#F2E9EE

border

#CCC5C9

text

#0D050A

muted

#7E797C

Preview Lab

Preview with #631B4E

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

Preview Lab → · Contrast checker → · Palette generator →