#4C151B#4C151B

#4C151B is a dark, moderate red. Relative luminance 0.022; OKLCH L 28.8% C 0.083 H 17.7°. Best body text is #FFFFFF at 14.68:1 contrast (WCAG AA passes).

Color values

HEX	#4C151B
RGB	rgb(76, 21, 27)
HSL	hsl(353, 57%, 19%)
HSV	hsv(353, 72%, 30%)
CMYK	cmyk(0%, 72.4%, 64.5%, 70.2%)
CIE-LAB	lab(16.27, 26.41, 10.27)
CIE-LCH	lch(16.27, 28.34, 21.24°)
OKLab	oklab(28.84% 0.079 0.0252)
OKLCH	oklch(28.84% 0.083 17.7)
XYZ	xyz(3.4468, 2.1524, 1.2707)
Luminance	0.0215 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C151B #154C46

analogous

#4C1537 #4C151B #4C2B15

triadic

#4C151B #1B4C15 #151B4C

tetradic

#4C151B #374C15 #154C46 #2B154C

square

#4C151B #374C15 #154C46 #2B154C

split-complementary

#4C151B #154C2B #15374C

monochromatic

#180709 #1C080A #4C151B #7C222C #AC2F3D

Accessibility & contrast

On white

14.68

#4C151B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#4C151B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C151B

14.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C151B	#FFFFFF	#000000	##FFFFFF
##4C151B	1.00	14.68	1.43	14.68
#FFFFFF	14.68	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23211B

Deuteranopia (green-blind)

#312D1A

Tritanopia (blue-blind)

#540A18

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #4c151b;
/* rgb */ color: rgb(76, 21, 27);
/* oklch */ color: oklch(28.8% 0.083 17.7);

Tailwind

colors: {
  custom: {
    50: '#825657',
    500: '#4c151b',
    950: '#000000',
  },
}

SCSS

$custom: #4c151b;
$custom-light: #825657;
$custom-dark: #000000;

JSON

{
  "hex": "#4c151b",
  "rgb": {
    "r": 76,
    "g": 21,
    "b": 27
  },
  "hsl": {
    "h": 353.455,
    "s": 56.701,
    "l": 19.02
  },
  "oklch": {
    "l": 0.28842,
    "c": 0.08288,
    "h": 17.7
  },
  "luminance": 0.02152
}

Semantic roles & 50–950 ramp

primary

#4C151B

secondary

#39847C

accent

#E0CF48

background

#F8F5F5

surface

#EFE9E9

border

#CAC5C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4C151B

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

Preview Lab → · Contrast checker → · Palette generator →