#3B100E#3B100E

#3B100E is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.5% C 0.069 H 26.1°. Best body text is #FFFFFF at 16.58:1 contrast (WCAG AA passes).

Color values

HEX	#3B100E
RGB	rgb(59, 16, 14)
HSL	hsl(3, 62%, 14%)
HSV	hsv(3, 76%, 23%)
CMYK	cmyk(0%, 72.9%, 76.3%, 76.9%)
CIE-LAB	lab(11.50, 21.06, 11.77)
CIE-LCH	lch(11.50, 24.12, 29.19°)
OKLab	oklab(24.52% 0.0615 0.0301)
OKLCH	oklch(24.52% 0.069 26.1)
XYZ	xyz(2.0684, 1.3324, 0.5636)
Luminance	0.0133 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B100E #0E393B

analogous

#3B0E23 #3B100E #3B270E

triadic

#3B100E #0E3B10 #100E3B

tetradic

#3B100E #233B0E #0E393B #270E3B

square

#3B100E #233B0E #0E393B #270E3B

split-complementary

#3B100E #0E3B27 #0E233B

monochromatic

#190706 #190706 #3B100E #6C1D1A #9E2B25

Accessibility & contrast

On white

16.58

#3B100E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#3B100E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B100E

16.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B100E	#FFFFFF	#000000	##FFFFFF
##3B100E	1.00	16.58	1.27	16.58
#FFFFFF	16.58	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B190D

Deuteranopia (green-blind)

#26220D

Tritanopia (blue-blind)

#420710

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3b100e;
/* rgb */ color: rgb(59, 16, 14);
/* oklch */ color: oklch(24.5% 0.069 26.1);

Tailwind

colors: {
  custom: {
    50: '#75504d',
    500: '#3b100e',
    950: '#000000',
  },
}

SCSS

$custom: #3b100e;
$custom-light: #75504d;
$custom-dark: #000000;

JSON

{
  "hex": "#3b100e",
  "rgb": {
    "r": 59,
    "g": 16,
    "b": 14
  },
  "hsl": {
    "h": 2.667,
    "s": 61.644,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24515,
    "c": 0.06852,
    "h": 26.1
  },
  "luminance": 0.01332
}

Semantic roles & 50–950 ramp

primary

#3B100E

secondary

#2F7376

accent

#DEE543

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090201

muted

#7B7877

Preview Lab

Preview with #3B100E

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

Preview Lab → · Contrast checker → · Palette generator →