#7B181B#7B181B

#7B181B is a dark, vivid red. Relative luminance 0.049; OKLCH L 38.3% C 0.133 H 24.9°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#7B181B
RGB	rgb(123, 24, 27)
HSL	hsl(358, 67%, 29%)
HSV	hsv(358, 80%, 48%)
CMYK	cmyk(0%, 80.5%, 78%, 51.8%)
CIE-LAB	lab(26.58, 41.76, 25.11)
CIE-LCH	lch(26.58, 48.73, 31.02°)
OKLab	oklab(38.32% 0.1211 0.0561)
OKLCH	oklch(38.32% 0.133 24.9)
XYZ	xyz(8.6939, 4.9447, 1.5334)
Luminance	0.0494 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#7B181B #187B78

analogous

#7B184D #7B181B #7B4718

triadic

#7B181B #1B7B18 #181B7B

tetradic

#7B181B #4D7B18 #187B78 #47187B

square

#7B181B #4D7B18 #187B78 #47187B

split-complementary

#7B181B #187B47 #184D7B

monochromatic

#1A0506 #480E10 #7B181B #AE2226 #D8363B

Accessibility & contrast

On white

10.56

#7B181B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#7B181B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #7B181B

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##7B181B	#FFFFFF	#000000	##FFFFFF
##7B181B	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36311A

Deuteranopia (green-blind)

#4F4717

Tritanopia (blue-blind)

#88001A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #7b181b;
/* rgb */ color: rgb(123, 24, 27);
/* oklch */ color: oklch(38.3% 0.133 24.9);

Tailwind

colors: {
  custom: {
    50: '#a95f57',
    500: '#7b181b',
    950: '#000000',
  },
}

SCSS

$custom: #7b181b;
$custom-light: #a95f57;
$custom-dark: #000000;

JSON

{
  "hex": "#7b181b",
  "rgb": {
    "r": 123,
    "g": 24,
    "b": 27
  },
  "hsl": {
    "h": 358.182,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3832,
    "c": 0.13343,
    "h": 24.9
  },
  "luminance": 0.04943
}

Semantic roles & 50–950 ramp

primary

#7B181B

secondary

#3FB0AC

accent

#EAE53E

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#110503

muted

#807978

Preview Lab

Preview with #7B181B

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

Preview Lab → · Contrast checker → · Palette generator →