#631712#631712

#631712 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.109 H 28.3°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#631712
RGB	rgb(99, 23, 18)
HSL	hsl(4, 69%, 23%)
HSV	hsv(4, 82%, 39%)
CMYK	cmyk(0%, 76.8%, 81.8%, 61.2%)
CIE-LAB	lab(21.24, 33.58, 23.50)
CIE-LCH	lch(21.24, 40.98, 34.98°)
OKLab	oklab(33.4% 0.0963 0.0519)
OKLCH	oklch(33.4% 0.109 28.3)
XYZ	xyz(5.5618, 3.3100, 0.9182)
Luminance	0.0331 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631712 #125E63

analogous

#631235 #631712 #633F12

triadic

#631712 #126317 #171263

tetradic

#631712 #356312 #125E63 #3F1263

square

#631712 #356312 #125E63 #3F1263

split-complementary

#631712 #12633F #123563

monochromatic

#1A0605 #2F0B09 #631712 #97231B #CB2F25

Accessibility & contrast

On white

12.64

#631712 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#631712 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631712

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631712	#FFFFFF	#000000	##FFFFFF
##631712	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2811

Deuteranopia (green-blind)

#40390F

Tritanopia (blue-blind)

#6E0017

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631712;
/* rgb */ color: rgb(99, 23, 18);
/* oklch */ color: oklch(33.4% 0.109 28.3);

Tailwind

colors: {
  custom: {
    50: '#965a50',
    500: '#631712',
    950: '#000000',
  },
}

SCSS

$custom: #631712;
$custom-light: #965a50;
$custom-dark: #000000;

JSON

{
  "hex": "#631712",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 18
  },
  "hsl": {
    "h": 3.704,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.33398,
    "c": 0.10942,
    "h": 28.3
  },
  "luminance": 0.03309
}

Semantic roles & 50–950 ramp

primary

#631712

secondary

#36959B

accent

#E1EC3C

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631712

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

Preview Lab → · Contrast checker → · Palette generator →