#631221#631221

#631221 is a dark, moderate red. Relative luminance 0.032; OKLCH L 33.2% C 0.113 H 16.1°. Best body text is #FFFFFF at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#631221
RGB	rgb(99, 18, 33)
HSL	hsl(349, 69%, 23%)
HSV	hsv(349, 82%, 39%)
CMYK	cmyk(0%, 81.8%, 66.7%, 61.2%)
CIE-LAB	lab(20.81, 36.32, 12.91)
CIE-LCH	lch(20.81, 38.54, 19.58°)
OKLab	oklab(33.16% 0.1086 0.0313)
OKLCH	oklch(33.16% 0.113 16.1)
XYZ	xyz(5.6370, 3.1959, 1.7586)
Luminance	0.0319 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631221 #126354

analogous

#631249 #631221 #632B12

triadic

#631221 #216312 #122163

tetradic

#631221 #496312 #126354 #2B1263

square

#631221 #496312 #126354 #2B1263

split-complementary

#631221 #12632B #124963

monochromatic

#1A0509 #2F0910 #631221 #971B32 #CB2544

Accessibility & contrast

On white

12.81

#631221 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#631221 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631221

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631221	#FFFFFF	#000000	##FFFFFF
##631221	1.00	12.81	1.64	12.81
#FFFFFF	12.81	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#292721

Deuteranopia (green-blind)

#3E381F

Tritanopia (blue-blind)

#6D0018

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #631221;
/* rgb */ color: rgb(99, 18, 33);
/* oklch */ color: oklch(33.2% 0.113 16.1);

Tailwind

colors: {
  custom: {
    50: '#95585b',
    500: '#631221',
    950: '#000000',
  },
}

SCSS

$custom: #631221;
$custom-light: #95585b;
$custom-dark: #000000;

JSON

{
  "hex": "#631221",
  "rgb": {
    "r": 99,
    "g": 18,
    "b": 33
  },
  "hsl": {
    "h": 348.889,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.33157,
    "c": 0.113,
    "h": 16.1
  },
  "luminance": 0.03195
}

Semantic roles & 50–950 ramp

primary

#631221

secondary

#369B88

accent

#ECCB3C

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #631221

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

Preview Lab → · Contrast checker → · Palette generator →