#631616#631616

#631616 is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.3% C 0.110 H 25.4°. Best body text is #FFFFFF at 12.68:1 contrast (WCAG AA passes).

Color values

HEX	#631616
RGB	rgb(99, 22, 22)
HSL	hsl(0, 64%, 24%)
HSV	hsv(0, 78%, 39%)
CMYK	cmyk(0%, 77.8%, 77.8%, 61.2%)
CIE-LAB	lab(21.15, 34.17, 20.83)
CIE-LCH	lch(21.15, 40.02, 31.37°)
OKLab	oklab(33.35% 0.0991 0.0472)
OKLCH	oklch(33.35% 0.11 25.4)
XYZ	xyz(5.5780, 3.2852, 1.0993)
Luminance	0.0328 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#631616 #166363

analogous

#63163C #631616 #633C16

triadic

#631616 #166316 #161663

tetradic

#631616 #3C6316 #166363 #3C1663

square

#631616 #3C6316 #166363 #3C1663

split-complementary

#631616 #16633C #163C63

monochromatic

#190606 #310B0B #631616 #952121 #C72C2C

Accessibility & contrast

On white

12.68

#631616 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#631616 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #631616

12.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##631616	#FFFFFF	#000000	##FFFFFF
##631616	1.00	12.68	1.66	12.68
#FFFFFF	12.68	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2815

Deuteranopia (green-blind)

#403913

Tritanopia (blue-blind)

#6E0017

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #631616;
/* rgb */ color: rgb(99, 22, 22);
/* oklch */ color: oklch(33.3% 0.110 25.4);

Tailwind

colors: {
  custom: {
    50: '#965a53',
    500: '#631616',
    950: '#000000',
  },
}

SCSS

$custom: #631616;
$custom-light: #965a53;
$custom-dark: #000000;

JSON

{
  "hex": "#631616",
  "rgb": {
    "r": 99,
    "g": 22,
    "b": 22
  },
  "hsl": {
    "h": 0,
    "s": 63.636,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33346,
    "c": 0.10978,
    "h": 25.4
  },
  "luminance": 0.03284
}

Semantic roles & 50–950 ramp

primary

#631616

secondary

#3B9A9A

accent

#E7E741

background

#F9F5F4

surface

#F2E9E7

border

#CCC5C3

text

#0F0402

muted

#7E7978

Preview Lab

Preview with #631616

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

Preview Lab → · Contrast checker → · Palette generator →