#631610#631610

#631610 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.3% C 0.111 H 28.9°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#631610
RGB	rgb(99, 22, 16)
HSL	hsl(4, 72%, 23%)
HSV	hsv(4, 84%, 39%)
CMYK	cmyk(0%, 77.8%, 83.8%, 61.2%)
CIE-LAB	lab(21.07, 33.90, 24.47)
CIE-LCH	lch(21.07, 41.81, 35.82°)
OKLab	oklab(33.26% 0.0969 0.0536)
OKLCH	oklch(33.26% 0.111 28.9)
XYZ	xyz(5.5267, 3.2647, 0.8293)
Luminance	0.0326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631610 #105D63

analogous

#631034 #631610 #633F10

triadic

#631610 #106316 #161063

tetradic

#631610 #346310 #105D63 #3F1063

square

#631610 #346310 #105D63 #3F1063

split-complementary

#631610 #10633F #103463

monochromatic

#1A0604 #2E0A07 #631610 #982219 #CC2D21

Accessibility & contrast

On white

12.71

#631610 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#631610 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631610

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631610	#FFFFFF	#000000	##FFFFFF
##631610	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D280E

Deuteranopia (green-blind)

#40390D

Tritanopia (blue-blind)

#6E0015

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631610;
/* rgb */ color: rgb(99, 22, 16);
/* oklch */ color: oklch(33.3% 0.111 28.9);

Tailwind

colors: {
  custom: {
    50: '#975a4f',
    500: '#631610',
    950: '#000000',
  },
}

SCSS

$custom: #631610;
$custom-light: #975a4f;
$custom-dark: #000000;

JSON

{
  "hex": "#631610",
  "rgb": {
    "r": 99,
    "g": 22,
    "b": 16
  },
  "hsl": {
    "h": 4.337,
    "s": 72.174,
    "l": 22.549
  },
  "oklch": {
    "l": 0.33263,
    "c": 0.1107,
    "h": 28.9
  },
  "luminance": 0.03264
}

Semantic roles & 50–950 ramp

primary

#631610

secondary

#33949C

accent

#E2EF39

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #631610

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

Preview Lab → · Contrast checker → · Palette generator →