#4C101F#4C101F

#4C101F is a dark, moderate red. Relative luminance 0.020; OKLCH L 28.3% C 0.090 H 10.4°. Best body text is #FFFFFF at 14.99:1 contrast (WCAG AA passes).

Color values

HEX	#4C101F
RGB	rgb(76, 16, 31)
HSL	hsl(345, 65%, 18%)
HSV	hsv(345, 79%, 30%)
CMYK	cmyk(0%, 78.9%, 59.2%, 70.2%)
CIE-LAB	lab(15.52, 29.10, 6.36)
CIE-LCH	lch(15.52, 29.78, 12.34°)
OKLab	oklab(28.32% 0.0882 0.0162)
OKLCH	oklch(28.32% 0.09 10.4)
XYZ	xyz(3.4134, 2.0065, 1.5036)
Luminance	0.0201 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C101F #104C3D

analogous

#4C103D #4C101F #4C1F10

triadic

#4C101F #1F4C10 #101F4C

tetradic

#4C101F #3D4C10 #104C3D #1F104C

square

#4C101F #3D4C10 #104C3D #1F104C

split-complementary

#4C101F #104C1F #103D4C

monochromatic

#19050A #19050A #4C101F #7F1B34 #B12548

Accessibility & contrast

On white

14.99

#4C101F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#4C101F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C101F

14.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C101F	#FFFFFF	#000000	##FFFFFF
##4C101F	1.00	14.99	1.40	14.99
#FFFFFF	14.99	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1F1F

Deuteranopia (green-blind)

#2F2B1E

Tritanopia (blue-blind)

#540416

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #4c101f;
/* rgb */ color: rgb(76, 16, 31);
/* oklch */ color: oklch(28.3% 0.090 10.4);

Tailwind

colors: {
  custom: {
    50: '#82545a',
    500: '#4c101f',
    950: '#000000',
  },
}

SCSS

$custom: #4c101f;
$custom-light: #82545a;
$custom-dark: #000000;

JSON

{
  "hex": "#4c101f",
  "rgb": {
    "r": 76,
    "g": 16,
    "b": 31
  },
  "hsl": {
    "h": 345,
    "s": 65.217,
    "l": 18.039
  },
  "oklch": {
    "l": 0.2832,
    "c": 0.08969,
    "h": 10.4
  },
  "luminance": 0.02006
}

Semantic roles & 50–950 ramp

primary

#4C101F

secondary

#328671

accent

#E8BE40

background

#F8F5F5

surface

#EFE8E9

border

#CAC4C5

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4C101F

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

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