#3C100B#3C100B

#3C100B is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.7% C 0.071 H 29.5°. Best body text is #FFFFFF at 16.52:1 contrast (WCAG AA passes).

Color values

HEX	#3C100B
RGB	rgb(60, 16, 11)
HSL	hsl(6, 69%, 14%)
HSV	hsv(6, 82%, 24%)
CMYK	cmyk(0%, 73.3%, 81.7%, 76.5%)
CIE-LAB	lab(11.66, 21.29, 13.42)
CIE-LCH	lch(11.66, 25.17, 32.23°)
OKLab	oklab(24.66% 0.0614 0.0347)
OKLCH	oklch(24.66% 0.071 29.5)
XYZ	xyz(2.1094, 1.3557, 0.4671)
Luminance	0.0135 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C100B #0B373C

analogous

#3C0B1F #3C100B #3C290B

triadic

#3C100B #0B3C10 #100B3C

tetradic

#3C100B #1F3C0B #0B373C #290B3C

square

#3C100B #1F3C0B #0B373C #290B3C

split-complementary

#3C100B #0B3C29 #0B1F3C

monochromatic

#1A0705 #1A0705 #3C100B #701E14 #A32C1E

Accessibility & contrast

On white

16.52

#3C100B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#3C100B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C100B

16.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C100B	#FFFFFF	#000000	##FFFFFF
##3C100B	1.00	16.52	1.27	16.52
#FFFFFF	16.52	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C190A

Deuteranopia (green-blind)

#27220A

Tritanopia (blue-blind)

#43060F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #3c100b;
/* rgb */ color: rgb(60, 16, 11);
/* oklch */ color: oklch(24.7% 0.071 29.5);

Tailwind

colors: {
  custom: {
    50: '#76514b',
    500: '#3c100b',
    950: '#000000',
  },
}

SCSS

$custom: #3c100b;
$custom-light: #76514b;
$custom-dark: #000000;

JSON

{
  "hex": "#3c100b",
  "rgb": {
    "r": 60,
    "g": 16,
    "b": 11
  },
  "hsl": {
    "h": 6.122,
    "s": 69.014,
    "l": 13.922
  },
  "oklch": {
    "l": 0.24658,
    "c": 0.07052,
    "h": 29.5
  },
  "luminance": 0.01355
}

Semantic roles & 50–950 ramp

primary

#3C100B

secondary

#2A7179

accent

#DAEC3C

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090201

muted

#7B7877

Preview Lab

Preview with #3C100B

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

Preview Lab → · Contrast checker → · Palette generator →