#4B0B1B#4B0B1B

#4B0B1B is a dark, moderate red. Relative luminance 0.018; OKLCH L 27.5% C 0.094 H 12.0°. Best body text is #FFFFFF at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#4B0B1B
RGB	rgb(75, 11, 27)
HSL	hsl(345, 74%, 17%)
HSV	hsv(345, 85%, 29%)
CMYK	cmyk(0%, 85.3%, 64%, 70.6%)
CIE-LAB	lab(14.48, 30.38, 7.83)
CIE-LCH	lch(14.48, 31.38, 14.46°)
OKLab	oklab(27.48% 0.0918 0.0195)
OKLCH	oklch(27.48% 0.094 12)
XYZ	xyz(3.2195, 1.8148, 1.2175)
Luminance	0.0181 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B0B1B #0B4B3B

analogous

#4B0B3B #4B0B1B #4B1B0B

triadic

#4B0B1B #1B4B0B #0B1B4B

tetradic

#4B0B1B #3B4B0B #0B4B3B #1B0B4B

square

#4B0B1B #3B4B0B #0B4B3B #1B0B4B

split-complementary

#4B0B1B #0B4B1B #0B3B4B

monochromatic

#1B040A #1B040A #4B0B1B #80132E #B61B41

Accessibility & contrast

On white

15.41

#4B0B1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#4B0B1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B0B1B

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B0B1B	#FFFFFF	#000000	##FFFFFF
##4B0B1B	1.00	15.41	1.36	15.41
#FFFFFF	15.41	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1C1B

Deuteranopia (green-blind)

#2D2919

Tritanopia (blue-blind)

#530012

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #4b0b1b;
/* rgb */ color: rgb(75, 11, 27);
/* oklch */ color: oklch(27.5% 0.094 12.0);

Tailwind

colors: {
  custom: {
    50: '#825156',
    500: '#4b0b1b',
    950: '#000000',
  },
}

SCSS

$custom: #4b0b1b;
$custom-light: #825156;
$custom-dark: #000000;

JSON

{
  "hex": "#4b0b1b",
  "rgb": {
    "r": 75,
    "g": 11,
    "b": 27
  },
  "hsl": {
    "h": 345,
    "s": 74.419,
    "l": 16.863
  },
  "oklch": {
    "l": 0.27477,
    "c": 0.09384,
    "h": 12
  },
  "luminance": 0.01814
}

Semantic roles & 50–950 ramp

primary

#4B0B1B

secondary

#2B8770

accent

#F1C237

background

#F8F4F5

surface

#EFE7E9

border

#CAC3C5

text

#0B0203

muted

#7C7878

Preview Lab

Preview with #4B0B1B

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

Preview Lab → · Contrast checker → · Palette generator →