#4B131F#4B131F

#4B131F is a dark, moderate red. Relative luminance 0.021; OKLCH L 28.5% C 0.085 H 11.6°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#4B131F
RGB	rgb(75, 19, 31)
HSL	hsl(347, 60%, 18%)
HSV	hsv(347, 75%, 29%)
CMYK	cmyk(0%, 74.7%, 58.7%, 70.6%)
CIE-LAB	lab(15.80, 27.37, 6.72)
CIE-LCH	lch(15.80, 28.18, 13.80°)
OKLab	oklab(28.49% 0.0828 0.017)
OKLCH	oklch(28.49% 0.085 11.6)
XYZ	xyz(3.3821, 2.0610, 1.5158)
Luminance	0.0206 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B131F #134B3F

analogous

#4B133B #4B131F #4B2313

triadic

#4B131F #1F4B13 #131F4B

tetradic

#4B131F #3B4B13 #134B3F #23134B

square

#4B131F #3B4B13 #134B3F #23134B

split-complementary

#4B131F #134B23 #133B4B

monochromatic

#18060A #1A070B #4B131F #7C1F33 #AD2C47

Accessibility & contrast

On white

14.87

#4B131F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#4B131F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B131F

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B131F	#FFFFFF	#000000	##FFFFFF
##4B131F	1.00	14.87	1.41	14.87
#FFFFFF	14.87	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20201F

Deuteranopia (green-blind)

#2F2C1E

Tritanopia (blue-blind)

#520818

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #4b131f;
/* rgb */ color: rgb(75, 19, 31);
/* oklch */ color: oklch(28.5% 0.085 11.6);

Tailwind

colors: {
  custom: {
    50: '#81555a',
    500: '#4b131f',
    950: '#000000',
  },
}

SCSS

$custom: #4b131f;
$custom-light: #81555a;
$custom-dark: #000000;

JSON

{
  "hex": "#4b131f",
  "rgb": {
    "r": 75,
    "g": 19,
    "b": 31
  },
  "hsl": {
    "h": 347.143,
    "s": 59.574,
    "l": 18.431
  },
  "oklch": {
    "l": 0.28491,
    "c": 0.08455,
    "h": 11.6
  },
  "luminance": 0.02061
}

Semantic roles & 50–950 ramp

primary

#4B131F

secondary

#368473

accent

#E3C145

background

#F8F5F5

surface

#EFE9E9

border

#CAC5C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4B131F

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

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