#631C2D#631C2D

#631C2D is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.5% C 0.102 H 10.0°. Best body text is #FFFFFF at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#631C2D
RGB	rgb(99, 28, 45)
HSL	hsl(346, 56%, 25%)
HSV	hsv(346, 72%, 39%)
CMYK	cmyk(0%, 71.7%, 54.5%, 61.2%)
CIE-LAB	lab(22.56, 33.26, 6.94)
CIE-LCH	lch(22.56, 33.98, 11.79°)
OKLab	oklab(34.55% 0.1009 0.0178)
OKLCH	oklch(34.55% 0.102 10)
XYZ	xyz(6.0350, 3.6734, 2.8734)
Luminance	0.0367 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631C2D #1C6352

analogous

#631C51 #631C2D #632F1C

triadic

#631C2D #2D631C #1C2D63

tetradic

#631C2D #51631C #1C6352 #2F1C63

square

#631C2D #51631C #1C6352 #2F1C63

split-complementary

#631C2D #1C632F #1C5163

monochromatic

#18070B #330F17 #631C2D #932943 #C23758

Accessibility & contrast

On white

12.11

#631C2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#631C2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631C2D

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631C2D	#FFFFFF	#000000	##FFFFFF
##631C2D	1.00	12.11	1.73	12.11
#FFFFFF	12.11	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2D2D

Deuteranopia (green-blind)

#3F3B2B

Tritanopia (blue-blind)

#6C0F23

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #631c2d;
/* rgb */ color: rgb(99, 28, 45);
/* oklch */ color: oklch(34.5% 0.102 10.0);

Tailwind

colors: {
  custom: {
    50: '#945d65',
    500: '#631c2d',
    950: '#000000',
  },
}

SCSS

$custom: #631c2d;
$custom-light: #945d65;
$custom-dark: #000000;

JSON

{
  "hex": "#631c2d",
  "rgb": {
    "r": 99,
    "g": 28,
    "b": 45
  },
  "hsl": {
    "h": 345.634,
    "s": 55.906,
    "l": 24.902
  },
  "oklch": {
    "l": 0.3455,
    "c": 0.10247,
    "h": 10
  },
  "luminance": 0.03673
}

Semantic roles & 50–950 ramp

primary

#631C2D

secondary

#439884

accent

#DFBB49

background

#F9F5F6

surface

#F2E9EB

border

#CCC5C6

text

#0E0405

muted

#7E797A

Preview Lab

Preview with #631C2D

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

Preview Lab → · Contrast checker → · Palette generator →