#4D101F#4D101F

#4D101F is a dark, moderate red. Relative luminance 0.020; OKLCH L 28.5% C 0.091 H 10.7°. Best body text is #FFFFFF at 14.90:1 contrast (WCAG AA passes).

Color values

HEX	#4D101F
RGB	rgb(77, 16, 31)
HSL	hsl(345, 66%, 18%)
HSV	hsv(345, 79%, 30%)
CMYK	cmyk(0%, 79.2%, 59.7%, 69.8%)
CIE-LAB	lab(15.74, 29.45, 6.69)
CIE-LCH	lch(15.74, 30.20, 12.81°)
OKLab	oklab(28.52% 0.0892 0.0169)
OKLCH	oklch(28.52% 0.091 10.7)
XYZ	xyz(3.4935, 2.0478, 1.5074)
Luminance	0.0205 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D101F #104D3E

analogous

#4D103D #4D101F #4D1F10

triadic

#4D101F #1F4D10 #101F4D

tetradic

#4D101F #3D4D10 #104D3E #1F104D

square

#4D101F #3D4D10 #104D3E #1F104D

split-complementary

#4D101F #104D1F #103D4D

monochromatic

#19050A #1A050B #4D101F #801B33 #B22548

Accessibility & contrast

On white

14.90

#4D101F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#4D101F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4D101F

14.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D101F	#FFFFFF	#000000	##FFFFFF
##4D101F	1.00	14.90	1.41	14.90
#FFFFFF	14.90	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1F1F

Deuteranopia (green-blind)

#2F2C1D

Tritanopia (blue-blind)

#550316

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #4d101f;
/* rgb */ color: rgb(77, 16, 31);
/* oklch */ color: oklch(28.5% 0.091 10.7);

Tailwind

colors: {
  custom: {
    50: '#83545a',
    500: '#4d101f',
    950: '#000000',
  },
}

SCSS

$custom: #4d101f;
$custom-light: #83545a;
$custom-dark: #000000;

JSON

{
  "hex": "#4d101f",
  "rgb": {
    "r": 77,
    "g": 16,
    "b": 31
  },
  "hsl": {
    "h": 345.246,
    "s": 65.591,
    "l": 18.235
  },
  "oklch": {
    "l": 0.28518,
    "c": 0.09082,
    "h": 10.7
  },
  "luminance": 0.02047
}

Semantic roles & 50–950 ramp

primary

#4D101F

secondary

#328772

accent

#E9BF3F

background

#F8F5F5

surface

#F0E8E9

border

#CBC4C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4D101F

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

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