#631815#631815

#631815 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.6% C 0.108 H 27.0°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#631815
RGB	rgb(99, 24, 21)
HSL	hsl(2, 65%, 24%)
HSV	hsv(2, 79%, 39%)
CMYK	cmyk(0%, 75.8%, 78.8%, 61.2%)
CIE-LAB	lab(21.43, 33.30, 21.80)
CIE-LCH	lch(21.43, 39.80, 33.22°)
OKLab	oklab(33.55% 0.0962 0.049)
OKLCH	oklch(33.55% 0.108 27)
XYZ	xyz(5.6082, 3.3609, 1.0627)
Luminance	0.0336 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631815 #156063

analogous

#631539 #631815 #633F15

triadic

#631815 #156318 #181563

tetradic

#631815 #396315 #156063 #3F1563

square

#631815 #396315 #156063 #3F1563

split-complementary

#631815 #15633F #153963

monochromatic

#190605 #310C0A #631815 #952420 #C8302A

Accessibility & contrast

On white

12.56

#631815 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#631815 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631815

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631815	#FFFFFF	#000000	##FFFFFF
##631815	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2914

Deuteranopia (green-blind)

#403912

Tritanopia (blue-blind)

#6E0018

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631815;
/* rgb */ color: rgb(99, 24, 21);
/* oklch */ color: oklch(33.6% 0.108 27.0);

Tailwind

colors: {
  custom: {
    50: '#965b52',
    500: '#631815',
    950: '#000000',
  },
}

SCSS

$custom: #631815;
$custom-light: #965b52;
$custom-dark: #000000;

JSON

{
  "hex": "#631815",
  "rgb": {
    "r": 99,
    "g": 24,
    "b": 21
  },
  "hsl": {
    "h": 2.308,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.33553,
    "c": 0.10793,
    "h": 27
  },
  "luminance": 0.0336
}

Semantic roles & 50–950 ramp

primary

#631815

secondary

#3A969A

accent

#E2E840

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631815

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

Preview Lab → · Contrast checker → · Palette generator →