#7B181F#7B181F

#7B181F is a dark, vivid red. Relative luminance 0.050; OKLCH L 38.4% C 0.133 H 22.8°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#7B181F
RGB	rgb(123, 24, 31)
HSL	hsl(356, 67%, 29%)
HSV	hsv(356, 80%, 48%)
CMYK	cmyk(0%, 80.5%, 74.8%, 51.8%)
CIE-LAB	lab(26.63, 41.94, 22.61)
CIE-LCH	lch(26.63, 47.65, 28.33°)
OKLab	oklab(38.38% 0.1226 0.0516)
OKLCH	oklch(38.38% 0.133 22.8)
XYZ	xyz(8.7433, 4.9645, 1.7939)
Luminance	0.0496 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#7B181F #187B74

analogous

#7B1851 #7B181F #7B4318

triadic

#7B181F #1F7B18 #181F7B

tetradic

#7B181F #517B18 #187B74 #43187B

square

#7B181F #517B18 #187B74 #43187B

split-complementary

#7B181F #187B43 #18517B

monochromatic

#1A0506 #480E12 #7B181F #AE222C #D83641

Accessibility & contrast

On white

10.54

#7B181F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#7B181F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #7B181F

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##7B181F	#FFFFFF	#000000	##FFFFFF
##7B181F	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36311E

Deuteranopia (green-blind)

#4F471C

Tritanopia (blue-blind)

#88001C

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #7b181f;
/* rgb */ color: rgb(123, 24, 31);
/* oklch */ color: oklch(38.4% 0.133 22.8);

Tailwind

colors: {
  custom: {
    50: '#a95f5a',
    500: '#7b181f',
    950: '#000000',
  },
}

SCSS

$custom: #7b181f;
$custom-light: #a95f5a;
$custom-dark: #000000;

JSON

{
  "hex": "#7b181f",
  "rgb": {
    "r": 123,
    "g": 24,
    "b": 31
  },
  "hsl": {
    "h": 355.758,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.38381,
    "c": 0.13301,
    "h": 22.8
  },
  "luminance": 0.04963
}

Semantic roles & 50–950 ramp

primary

#7B181F

secondary

#3FB0A8

accent

#EADE3E

background

#FBF5F5

surface

#F6EAE9

border

#D0C6C5

text

#110504

muted

#807979

Preview Lab

Preview with #7B181F

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

Preview Lab → · Contrast checker → · Palette generator →