#631710#631710

#631710 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.110 H 29.4°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#631710
RGB	rgb(99, 23, 16)
HSL	hsl(5, 72%, 23%)
HSV	hsv(5, 84%, 39%)
CMYK	cmyk(0%, 76.8%, 83.8%, 61.2%)
CIE-LAB	lab(21.22, 33.50, 24.63)
CIE-LCH	lch(21.22, 41.58, 36.33°)
OKLab	oklab(33.37% 0.0956 0.0539)
OKLCH	oklch(33.37% 0.11 29.4)
XYZ	xyz(5.5462, 3.3037, 0.8358)
Luminance	0.0330 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631710 #105C63

analogous

#631033 #631710 #634010

triadic

#631710 #106317 #171063

tetradic

#631710 #336310 #105C63 #401063

square

#631710 #336310 #105C63 #401063

split-complementary

#631710 #106340 #103363

monochromatic

#1A0604 #2E0B07 #631710 #982319 #CC2F21

Accessibility & contrast

On white

12.65

#631710 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#631710 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631710

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631710	#FFFFFF	#000000	##FFFFFF
##631710	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E280E

Deuteranopia (green-blind)

#40390D

Tritanopia (blue-blind)

#6E0016

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631710;
/* rgb */ color: rgb(99, 23, 16);
/* oklch */ color: oklch(33.4% 0.110 29.4);

Tailwind

colors: {
  custom: {
    50: '#975a4f',
    500: '#631710',
    950: '#000000',
  },
}

SCSS

$custom: #631710;
$custom-light: #975a4f;
$custom-dark: #000000;

JSON

{
  "hex": "#631710",
  "rgb": {
    "r": 99,
    "g": 23,
    "b": 16
  },
  "hsl": {
    "h": 5.06,
    "s": 72.174,
    "l": 22.549
  },
  "oklch": {
    "l": 0.33373,
    "c": 0.10976,
    "h": 29.4
  },
  "luminance": 0.03303
}

Semantic roles & 50–950 ramp

primary

#631710

secondary

#33939C

accent

#E0EF39

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #631710

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

Preview Lab → · Contrast checker → · Palette generator →