#4C100C#4C100C

#4C100C is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.9% C 0.091 H 28.3°. Best body text is #FFFFFF at 15.14:1 contrast (WCAG AA passes).

Color values

HEX	#4C100C
RGB	rgb(76, 16, 12)
HSL	hsl(4, 73%, 17%)
HSV	hsv(4, 84%, 30%)
CMYK	cmyk(0%, 78.9%, 84.2%, 70.2%)
CIE-LAB	lab(15.14, 27.78, 18.22)
CIE-LCH	lch(15.14, 33.22, 33.26°)
OKLab	oklab(27.91% 0.0798 0.0429)
OKLCH	oklch(27.91% 0.091 28.3)
XYZ	xyz(3.2325, 1.9341, 0.5509)
Luminance	0.0193 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C100C #0C484C

analogous

#4C0C28 #4C100C #4C300C

triadic

#4C100C #0C4C10 #100C4C

tetradic

#4C100C #284C0C #0C484C #300C4C

square

#4C100C #284C0C #0C484C #300C4C

split-complementary

#4C100C #0C4C30 #0C284C

monochromatic

#1A0604 #1A0604 #4C100C #811B14 #B6261D

Accessibility & contrast

On white

15.14

#4C100C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#4C100C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C100C

15.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C100C	#FFFFFF	#000000	##FFFFFF
##4C100C	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)

#221E0B

Deuteranopia (green-blind)

#312B0A

Tritanopia (blue-blind)

#540010

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #4c100c;
/* rgb */ color: rgb(76, 16, 12);
/* oklch */ color: oklch(27.9% 0.091 28.3);

Tailwind

colors: {
  custom: {
    50: '#84534c',
    500: '#4c100c',
    950: '#000000',
  },
}

SCSS

$custom: #4c100c;
$custom-light: #84534c;
$custom-dark: #000000;

JSON

{
  "hex": "#4c100c",
  "rgb": {
    "r": 76,
    "g": 16,
    "b": 12
  },
  "hsl": {
    "h": 3.75,
    "s": 72.727,
    "l": 17.255
  },
  "oklch": {
    "l": 0.2791,
    "c": 0.09057,
    "h": 28.3
  },
  "luminance": 0.01934
}

Semantic roles & 50–950 ramp

primary

#4C100C

secondary

#2C8288

accent

#E4EF38

background

#F8F4F4

surface

#F0E7E7

border

#CBC3C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #4C100C

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

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