#4A100D#4A100D

#4A100D is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.5% C 0.088 H 27.5°. Best body text is #FFFFFF at 15.32:1 contrast (WCAG AA passes).

Color values

HEX	#4A100D
RGB	rgb(74, 16, 13)
HSL	hsl(3, 70%, 17%)
HSV	hsv(3, 82%, 29%)
CMYK	cmyk(0%, 78.4%, 82.4%, 71%)
CIE-LAB	lab(14.71, 27.06, 17.12)
CIE-LCH	lch(14.71, 32.02, 32.31°)
OKLab	oklab(27.52% 0.078 0.0406)
OKLCH	oklch(27.52% 0.088 27.5)
XYZ	xyz(3.0823, 1.8560, 0.5766)
Luminance	0.0186 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A100D #0D474A

analogous

#4A0D29 #4A100D #4A2F0D

triadic

#4A100D #0D4A10 #100D4A

tetradic

#4A100D #294A0D #0D474A #2F0D4A

square

#4A100D #294A0D #0D474A #2F0D4A

split-complementary

#4A100D #0D4A2F #0D294A

monochromatic

#1A0605 #1A0605 #4A100D #7E1B16 #B2271F

Accessibility & contrast

On white

15.32

#4A100D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#4A100D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4A100D

15.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A100D	#FFFFFF	#000000	##FFFFFF
##4A100D	1.00	15.32	1.37	15.32
#FFFFFF	15.32	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#211D0C

Deuteranopia (green-blind)

#2F2A0B

Tritanopia (blue-blind)

#520010

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #4a100d;
/* rgb */ color: rgb(74, 16, 13);
/* oklch */ color: oklch(27.5% 0.088 27.5);

Tailwind

colors: {
  custom: {
    50: '#82534c',
    500: '#4a100d',
    950: '#000000',
  },
}

SCSS

$custom: #4a100d;
$custom-light: #82534c;
$custom-dark: #000000;

JSON

{
  "hex": "#4a100d",
  "rgb": {
    "r": 74,
    "g": 16,
    "b": 13
  },
  "hsl": {
    "h": 2.951,
    "s": 70.115,
    "l": 17.059
  },
  "oklch": {
    "l": 0.27517,
    "c": 0.08797,
    "h": 27.5
  },
  "luminance": 0.01855
}

Semantic roles & 50–950 ramp

primary

#4A100D

secondary

#2E8185

accent

#E4ED3B

background

#F8F4F4

surface

#F0E7E7

border

#CBC3C3

text

#0B0201

muted

#7C7877

Preview Lab

Preview with #4A100D

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

Preview Lab → · Contrast checker → · Palette generator →