#4C100F#4C100F

#4C100F is a dark, moderate red. Relative luminance 0.019; OKLCH L 28.0% C 0.090 H 26.0°. Best body text is #FFFFFF at 15.13:1 contrast (WCAG AA passes).

Color values

HEX	#4C100F
RGB	rgb(76, 16, 15)
HSL	hsl(1, 67%, 18%)
HSV	hsv(1, 80%, 30%)
CMYK	cmyk(0%, 78.9%, 80.3%, 70.2%)
CIE-LAB	lab(15.18, 27.93, 16.80)
CIE-LCH	lch(15.18, 32.59, 31.03°)
OKLab	oklab(27.96% 0.081 0.0394)
OKLCH	oklch(27.96% 0.09 26)
XYZ	xyz(3.2524, 1.9421, 0.6554)
Luminance	0.0194 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C100F #0F4B4C

analogous

#4C0F2C #4C100F #4C2F0F

triadic

#4C100F #0F4C10 #100F4C

tetradic

#4C100F #2C4C0F #0F4B4C #2F0F4C

square

#4C100F #2C4C0F #0F4B4C #2F0F4C

split-complementary

#4C100F #0F4C2F #0F2C4C

monochromatic

#1A0505 #1A0505 #4C100F #7F1B19 #B22623

Accessibility & contrast

On white

15.13

#4C100F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#4C100F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C100F

15.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C100F	#FFFFFF	#000000	##FFFFFF
##4C100F	1.00	15.13	1.39	15.13
#FFFFFF	15.13	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#211E0E

Deuteranopia (green-blind)

#302B0D

Tritanopia (blue-blind)

#540010

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #4c100f;
/* rgb */ color: rgb(76, 16, 15);
/* oklch */ color: oklch(28.0% 0.090 26.0);

Tailwind

colors: {
  custom: {
    50: '#84534d',
    500: '#4c100f',
    950: '#000000',
  },
}

SCSS

$custom: #4c100f;
$custom-light: #84534d;
$custom-dark: #000000;

JSON

{
  "hex": "#4c100f",
  "rgb": {
    "r": 76,
    "g": 16,
    "b": 15
  },
  "hsl": {
    "h": 0.984,
    "s": 67.033,
    "l": 17.843
  },
  "oklch": {
    "l": 0.27956,
    "c": 0.09007,
    "h": 26
  },
  "luminance": 0.01942
}

Semantic roles & 50–950 ramp

primary

#4C100F

secondary

#318586

accent

#E7EA3E

background

#F8F4F4

surface

#F0E7E7

border

#CBC3C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #4C100F

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

Preview Lab → · Contrast checker → · Palette generator →