#4C100D#4C100D

#4C100D is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.9% C 0.090 H 27.5°. Best body text is #FFFFFF at 15.14:1 contrast (WCAG AA passes).

Color values

HEX	#4C100D
RGB	rgb(76, 16, 13)
HSL	hsl(3, 71%, 17%)
HSV	hsv(3, 83%, 30%)
CMYK	cmyk(0%, 78.9%, 82.9%, 70.2%)
CIE-LAB	lab(15.15, 27.83, 17.77)
CIE-LCH	lch(15.15, 33.02, 32.56°)
OKLab	oklab(27.93% 0.0802 0.0418)
OKLCH	oklch(27.93% 0.09 27.5)
XYZ	xyz(3.2388, 1.9366, 0.5840)
Luminance	0.0194 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C100D #0D494C

analogous

#4C0D2A #4C100D #4C2F0D

triadic

#4C100D #0D4C10 #100D4C

tetradic

#4C100D #2A4C0D #0D494C #2F0D4C

square

#4C100D #2A4C0D #0D494C #2F0D4C

split-complementary

#4C100D #0D4C2F #0D2A4C

monochromatic

#1A0604 #1A0604 #4C100D #801B16 #B5261F

Accessibility & contrast

On white

15.14

#4C100D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#4C100D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C100D

15.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C100D	#FFFFFF	#000000	##FFFFFF
##4C100D	1.00	15.14	1.39	15.14
#FFFFFF	15.14	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#221E0C

Deuteranopia (green-blind)

#302B0B

Tritanopia (blue-blind)

#540010

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #4c100d;
/* rgb */ color: rgb(76, 16, 13);
/* oklch */ color: oklch(27.9% 0.090 27.5);

Tailwind

colors: {
  custom: {
    50: '#84534c',
    500: '#4c100d',
    950: '#000000',
  },
}

SCSS

$custom: #4c100d;
$custom-light: #84534c;
$custom-dark: #000000;

JSON

{
  "hex": "#4c100d",
  "rgb": {
    "r": 76,
    "g": 16,
    "b": 13
  },
  "hsl": {
    "h": 2.857,
    "s": 70.787,
    "l": 17.451
  },
  "oklch": {
    "l": 0.27925,
    "c": 0.09039,
    "h": 27.5
  },
  "luminance": 0.01936
}

Semantic roles & 50–950 ramp

primary

#4C100D

secondary

#2E8387

accent

#E5EE3A

background

#F8F4F4

surface

#F0E7E7

border

#CBC3C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #4C100D

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

Preview Lab → · Contrast checker → · Palette generator →