#631923#631923

#631923 is a dark, moderate red. Relative luminance 0.035; OKLCH L 33.9% C 0.105 H 17.3°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#631923
RGB	rgb(99, 25, 35)
HSL	hsl(352, 60%, 24%)
HSV	hsv(352, 75%, 39%)
CMYK	cmyk(0%, 74.7%, 64.6%, 61.2%)
CIE-LAB	lab(21.84, 33.73, 12.87)
CIE-LCH	lch(21.84, 36.10, 20.88°)
OKLab	oklab(33.93% 0.1007 0.0313)
OKLCH	oklch(33.93% 0.106 17.3)
XYZ	xyz(5.7972, 3.4701, 1.9543)
Luminance	0.0347 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631923 #196359

analogous

#631948 #631923 #633419

triadic

#631923 #236319 #192363

tetradic

#631923 #486319 #196359 #341963

square

#631923 #486319 #196359 #341963

split-complementary

#631923 #196334 #194863

monochromatic

#180609 #320D12 #631923 #942534 #C53246

Accessibility & contrast

On white

12.40

#631923 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#631923 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631923

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631923	#FFFFFF	#000000	##FFFFFF
##631923	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2A23

Deuteranopia (green-blind)

#3F3A21

Tritanopia (blue-blind)

#6D061D

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631923;
/* rgb */ color: rgb(99, 25, 35);
/* oklch */ color: oklch(33.9% 0.105 17.3);

Tailwind

colors: {
  custom: {
    50: '#955c5d',
    500: '#631923',
    950: '#000000',
  },
}

SCSS

$custom: #631923;
$custom-light: #955c5d;
$custom-dark: #000000;

JSON

{
  "hex": "#631923",
  "rgb": {
    "r": 99,
    "g": 25,
    "b": 35
  },
  "hsl": {
    "h": 351.892,
    "s": 59.677,
    "l": 24.314
  },
  "oklch": {
    "l": 0.33931,
    "c": 0.1055,
    "h": 17.3
  },
  "luminance": 0.03469
}

Semantic roles & 50–950 ramp

primary

#631923

secondary

#3F998D

accent

#E3CE45

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #631923

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

Preview Lab → · Contrast checker → · Palette generator →