#4B150D#4B150D

#4B150D is a dark, moderate red. Relative luminance 0.021; OKLCH L 28.4% C 0.084 H 31.1°. Best body text is #FFFFFF at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#4B150D
RGB	rgb(75, 21, 13)
HSL	hsl(8, 70%, 17%)
HSV	hsv(8, 83%, 29%)
CMYK	cmyk(0%, 72%, 82.7%, 70.6%)
CIE-LAB	lab(15.81, 25.07, 18.56)
CIE-LCH	lch(15.81, 31.19, 36.52°)
OKLab	oklab(28.38% 0.0716 0.0433)
OKLCH	oklch(28.38% 0.084 31.1)
XYZ	xyz(3.2428, 2.0617, 0.6079)
Luminance	0.0206 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B150D #0D434B

analogous

#4B0D24 #4B150D #4B340D

triadic

#4B150D #0D4B15 #150D4B

tetradic

#4B150D #244B0D #0D434B #340D4B

square

#4B150D #244B0D #0D434B #340D4B

split-complementary

#4B150D #0D4B34 #0D244B

monochromatic

#1A0705 #1A0705 #4B150D #7F2416 #B3321F

Accessibility & contrast

On white

14.87

#4B150D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#4B150D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B150D

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B150D	#FFFFFF	#000000	##FFFFFF
##4B150D	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)

#24200C

Deuteranopia (green-blind)

#322C0B

Tritanopia (blue-blind)

#530713

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #4b150d;
/* rgb */ color: rgb(75, 21, 13);
/* oklch */ color: oklch(28.4% 0.084 31.1);

Tailwind

colors: {
  custom: {
    50: '#83564c',
    500: '#4b150d',
    950: '#000000',
  },
}

SCSS

$custom: #4b150d;
$custom-light: #83564c;
$custom-dark: #000000;

JSON

{
  "hex": "#4b150d",
  "rgb": {
    "r": 75,
    "g": 21,
    "b": 13
  },
  "hsl": {
    "h": 7.742,
    "s": 70.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.28377,
    "c": 0.0837,
    "h": 31.1
  },
  "luminance": 0.02061
}

Semantic roles & 50–950 ramp

primary

#4B150D

secondary

#2E7B86

accent

#D6ED3B

background

#F8F5F4

surface

#F0E9E7

border

#CBC5C3

text

#0B0301

muted

#7C7877

Preview Lab

Preview with #4B150D

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

Preview Lab → · Contrast checker → · Palette generator →