#4C101D#4C101D

#4C101D is a dark, moderate red. Relative luminance 0.020; OKLCH L 28.3% C 0.089 H 12.5°. Best body text is #FFFFFF at 15.01:1 contrast (WCAG AA passes).

Color values

HEX	#4C101D
RGB	rgb(76, 16, 29)
HSL	hsl(347, 65%, 18%)
HSV	hsv(347, 79%, 30%)
CMYK	cmyk(0%, 78.9%, 61.8%, 70.2%)
CIE-LAB	lab(15.47, 28.91, 7.75)
CIE-LCH	lch(15.47, 29.93, 15.00°)
OKLab	oklab(28.26% 0.0873 0.0194)
OKLCH	oklch(28.26% 0.089 12.5)
XYZ	xyz(3.3879, 1.9963, 1.3691)
Luminance	0.0200 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C101D #104C3F

analogous

#4C103B #4C101D #4C2110

triadic

#4C101D #1D4C10 #101D4C

tetradic

#4C101D #3B4C10 #104C3F #21104C

square

#4C101D #3B4C10 #104C3F #21104C

split-complementary

#4C101D #104C21 #103B4C

monochromatic

#19050A #19050A #4C101D #7F1B30 #B12544

Accessibility & contrast

On white

15.01

#4C101D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#4C101D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C101D

15.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C101D	#FFFFFF	#000000	##FFFFFF
##4C101D	1.00	15.01	1.40	15.01
#FFFFFF	15.01	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1F1D

Deuteranopia (green-blind)

#2F2B1B

Tritanopia (blue-blind)

#540315

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #4c101d;
/* rgb */ color: rgb(76, 16, 29);
/* oklch */ color: oklch(28.3% 0.089 12.5);

Tailwind

colors: {
  custom: {
    50: '#825458',
    500: '#4c101d',
    950: '#000000',
  },
}

SCSS

$custom: #4c101d;
$custom-light: #825458;
$custom-dark: #000000;

JSON

{
  "hex": "#4c101d",
  "rgb": {
    "r": 76,
    "g": 16,
    "b": 29
  },
  "hsl": {
    "h": 347,
    "s": 65.217,
    "l": 18.039
  },
  "oklch": {
    "l": 0.28262,
    "c": 0.08943,
    "h": 12.5
  },
  "luminance": 0.01996
}

Semantic roles & 50–950 ramp

primary

#4C101D

secondary

#328674

accent

#E8C440

background

#F8F4F5

surface

#EFE8E9

border

#CAC4C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4C101D

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

Preview Lab → · Contrast checker → · Palette generator →