#631628#631628

#631628 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.7% C 0.109 H 11.9°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#631628
RGB	rgb(99, 22, 40)
HSL	hsl(346, 64%, 24%)
HSV	hsv(346, 78%, 39%)
CMYK	cmyk(0%, 77.8%, 59.6%, 61.2%)
CIE-LAB	lab(21.51, 35.36, 8.96)
CIE-LCH	lch(21.51, 36.48, 14.22°)
OKLab	oklab(33.73% 0.1069 0.0225)
OKLCH	oklch(33.73% 0.109 11.9)
XYZ	xyz(5.8161, 3.3805, 2.3533)
Luminance	0.0338 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631628 #166351

analogous

#63164E #631628 #632A16

triadic

#631628 #286316 #162863

tetradic

#631628 #4E6316 #166351 #2A1663

square

#631628 #4E6316 #166351 #2A1663

split-complementary

#631628 #16632A #164E63

monochromatic

#19060A #310B14 #631628 #95213C #C72C50

Accessibility & contrast

On white

12.53

#631628 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#631628 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631628

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631628	#FFFFFF	#000000	##FFFFFF
##631628	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2A28

Deuteranopia (green-blind)

#3E3926

Tritanopia (blue-blind)

#6D031D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631628;
/* rgb */ color: rgb(99, 22, 40);
/* oklch */ color: oklch(33.7% 0.109 11.9);

Tailwind

colors: {
  custom: {
    50: '#945a61',
    500: '#631628',
    950: '#000000',
  },
}

SCSS

$custom: #631628;
$custom-light: #945a61;
$custom-dark: #000000;

JSON

{
  "hex": "#631628",
  "rgb": {
    "r": 99,
    "g": 22,
    "b": 40
  },
  "hsl": {
    "h": 345.974,
    "s": 63.636,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33725,
    "c": 0.10923,
    "h": 11.9
  },
  "luminance": 0.0338
}

Semantic roles & 50–950 ramp

primary

#631628

secondary

#3B9A84

accent

#E7C041

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #631628

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

Preview Lab → · Contrast checker → · Palette generator →