#631713#631713

#631713 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.109 H 27.7°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#631713
RGB	rgb(99, 23, 19)
HSL	hsl(3, 68%, 23%)
HSV	hsv(3, 81%, 39%)
CMYK	cmyk(0%, 76.8%, 80.8%, 61.2%)
CIE-LAB	lab(21.26, 33.62, 22.89)
CIE-LCH	lch(21.26, 40.67, 34.24°)
OKLab	oklab(33.41% 0.0967 0.0509)
OKLCH	oklch(33.41% 0.109 27.7)
XYZ	xyz(5.5702, 3.3133, 0.9622)
Luminance	0.0331 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631713 #135F63

analogous

#631337 #631713 #633F13

triadic

#631713 #136317 #171363

tetradic

#631713 #376313 #135F63 #3F1363

square

#631713 #376313 #135F63 #3F1363

split-complementary

#631713 #13633F #133763

monochromatic

#1A0605 #300B09 #631713 #96231D #CA2F27

Accessibility & contrast

On white

12.63

#631713 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#631713 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631713

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631713	#FFFFFF	#000000	##FFFFFF
##631713	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2812

Deuteranopia (green-blind)

#403910

Tritanopia (blue-blind)

#6E0017

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631713;
/* rgb */ color: rgb(99, 23, 19);
/* oklch */ color: oklch(33.4% 0.109 27.7);

Tailwind

colors: {
  custom: {
    50: '#965a51',
    500: '#631713',
    950: '#000000',
  },
}

SCSS

$custom: #631713;
$custom-light: #965a51;
$custom-dark: #000000;

JSON

{
  "hex": "#631713",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 19
  },
  "hsl": {
    "h": 3,
    "s": 67.797,
    "l": 23.137
  },
  "oklch": {
    "l": 0.33411,
    "c": 0.10925,
    "h": 27.7
  },
  "luminance": 0.03312
}

Semantic roles & 50–950 ramp

primary

#631713

secondary

#37969B

accent

#E2EB3D

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631713

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

Preview Lab → · Contrast checker → · Palette generator →