#43181F#43181F

#43181F is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.7% C 0.067 H 12.5°. Best body text is #FFFFFF at 15.12:1 contrast (WCAG AA passes).

Color values

HEX	#43181F
RGB	rgb(67, 24, 31)
HSL	hsl(350, 47%, 18%)
HSV	hsv(350, 64%, 26%)
CMYK	cmyk(0%, 64.2%, 53.7%, 73.7%)
CIE-LAB	lab(15.20, 21.56, 5.64)
CIE-LCH	lch(15.20, 22.28, 14.67°)
OKLab	oklab(27.74% 0.0652 0.0145)
OKLCH	oklch(27.74% 0.067 12.5)
XYZ	xyz(2.8889, 1.9458, 1.5195)
Luminance	0.0194 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#43181F #18433C

analogous

#431834 #43181F #432618

triadic

#43181F #1F4318 #181F43

tetradic

#43181F #344318 #18433C #261843

square

#43181F #344318 #18433C #261843

split-complementary

#43181F #184326 #183443

monochromatic

#17080A #17080A #43181F #702834 #9D3849

Accessibility & contrast

On white

15.12

#43181F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#43181F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #43181F

15.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##43181F	#FFFFFF	#000000	##FFFFFF
##43181F	1.00	15.12	1.39	15.12
#FFFFFF	15.12	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21211F

Deuteranopia (green-blind)

#2C291E

Tritanopia (blue-blind)

#49121B

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #43181f;
/* rgb */ color: rgb(67, 24, 31);
/* oklch */ color: oklch(27.7% 0.067 12.5);

Tailwind

colors: {
  custom: {
    50: '#7a575a',
    500: '#43181f',
    950: '#000000',
  },
}

SCSS

$custom: #43181f;
$custom-light: #7a575a;
$custom-dark: #000000;

JSON

{
  "hex": "#43181f",
  "rgb": {
    "r": 67,
    "g": 24,
    "b": 31
  },
  "hsl": {
    "h": 350.233,
    "s": 47.253,
    "l": 17.843
  },
  "oklch": {
    "l": 0.27735,
    "c": 0.0668,
    "h": 12.5
  },
  "luminance": 0.01945
}

Semantic roles & 50–950 ramp

primary

#43181F

secondary

#3D7A70

accent

#D7C151

background

#F7F5F5

surface

#EEE9E9

border

#C9C5C5

text

#090303

muted

#7B7878

Preview Lab

Preview with #43181F

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

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