#631910#631910

#631910 is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.6% C 0.108 H 30.4°. Best body text is #FFFFFF at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#631910
RGB	rgb(99, 25, 16)
HSL	hsl(7, 72%, 23%)
HSV	hsv(7, 84%, 39%)
CMYK	cmyk(0%, 74.7%, 83.8%, 61.2%)
CIE-LAB	lab(21.53, 32.65, 24.97)
CIE-LCH	lch(21.53, 41.10, 37.40°)
OKLab	oklab(33.6% 0.093 0.0546)
OKLCH	oklch(33.6% 0.108 30.4)
XYZ	xyz(5.5874, 3.3862, 0.8495)
Luminance	0.0338 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631910 #105A63

analogous

#631030 #631910 #634210

triadic

#631910 #106319 #191063

tetradic

#631910 #306310 #105A63 #421063

square

#631910 #306310 #105A63 #421063

split-complementary

#631910 #106342 #103063

monochromatic

#1A0704 #2E0C07 #631910 #982619 #CC3421

Accessibility & contrast

On white

12.52

#631910 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#631910 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631910

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631910	#FFFFFF	#000000	##FFFFFF
##631910	1.00	12.52	1.68	12.52
#FFFFFF	12.52	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F290E

Deuteranopia (green-blind)

#413A0D

Tritanopia (blue-blind)

#6E0018

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #631910;
/* rgb */ color: rgb(99, 25, 16);
/* oklch */ color: oklch(33.6% 0.108 30.4);

Tailwind

colors: {
  custom: {
    50: '#965b4f',
    500: '#631910',
    950: '#000000',
  },
}

SCSS

$custom: #631910;
$custom-light: #965b4f;
$custom-dark: #000000;

JSON

{
  "hex": "#631910",
  "rgb": {
    "r": 99,
    "g": 25,
    "b": 16
  },
  "hsl": {
    "h": 6.506,
    "s": 72.174,
    "l": 22.549
  },
  "oklch": {
    "l": 0.33603,
    "c": 0.10781,
    "h": 30.4
  },
  "luminance": 0.03385
}

Semantic roles & 50–950 ramp

primary

#631910

secondary

#33909C

accent

#DBEF39

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631910

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

Preview Lab → · Contrast checker → · Palette generator →