#3B151B#3B151B

#3B151B is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.7% C 0.060 H 12.6°. Best body text is #FFFFFF at 16.04:1 contrast (WCAG AA passes).

Color values

HEX	#3B151B
RGB	rgb(59, 21, 27)
HSL	hsl(351, 48%, 16%)
HSV	hsv(351, 64%, 23%)
CMYK	cmyk(0%, 64.4%, 54.2%, 76.9%)
CIE-LAB	lab(12.89, 19.44, 5.12)
CIE-LCH	lch(12.89, 20.10, 14.75°)
OKLab	oklab(25.66% 0.0588 0.0132)
OKLCH	oklch(25.66% 0.06 12.6)
XYZ	xyz(2.2698, 1.5455, 1.2155)
Luminance	0.0155 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B151B #153B35

analogous

#3B152E #3B151B #3B2215

triadic

#3B151B #1B3B15 #151B3B

tetradic

#3B151B #2E3B15 #153B35 #22153B

square

#3B151B #2E3B15 #153B35 #22153B

split-complementary

#3B151B #153B22 #152E3B

monochromatic

#17080A #17080A #3B151B #682530 #953544

Accessibility & contrast

On white

16.04

#3B151B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#3B151B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B151B

16.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B151B	#FFFFFF	#000000	##FFFFFF
##3B151B	1.00	16.04	1.31	16.04
#FFFFFF	16.04	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1D1B

Deuteranopia (green-blind)

#27241A

Tritanopia (blue-blind)

#411017

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #3b151b;
/* rgb */ color: rgb(59, 21, 27);
/* oklch */ color: oklch(25.7% 0.060 12.6);

Tailwind

colors: {
  custom: {
    50: '#735457',
    500: '#3b151b',
    950: '#000000',
  },
}

SCSS

$custom: #3b151b;
$custom-light: #735457;
$custom-dark: #000000;

JSON

{
  "hex": "#3b151b",
  "rgb": {
    "r": 59,
    "g": 21,
    "b": 27
  },
  "hsl": {
    "h": 350.526,
    "s": 47.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.25664,
    "c": 0.06026,
    "h": 12.6
  },
  "luminance": 0.01545
}

Semantic roles & 50–950 ramp

primary

#3B151B

secondary

#397269

accent

#D7C251

background

#F7F4F5

surface

#EDE7E9

border

#C8C3C5

text

#080303

muted

#7B7878

Preview Lab

Preview with #3B151B

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

Preview Lab → · Contrast checker → · Palette generator →