#3B151C#3B151C

#3B151C is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.7% C 0.060 H 10.9°. Best body text is #FFFFFF at 16.03:1 contrast (WCAG AA passes).

Color values

HEX	#3B151C
RGB	rgb(59, 21, 28)
HSL	hsl(349, 48%, 16%)
HSV	hsv(349, 64%, 23%)
CMYK	cmyk(0%, 64.4%, 52.5%, 76.9%)
CIE-LAB	lab(12.92, 19.56, 4.42)
CIE-LCH	lch(12.92, 20.06, 12.74°)
OKLab	oklab(25.7% 0.0593 0.0115)
OKLCH	oklch(25.7% 0.06 10.9)
XYZ	xyz(2.2816, 1.5502, 1.2775)
Luminance	0.0155 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B151C #153B34

analogous

#3B152F #3B151C #3B2115

triadic

#3B151C #1C3B15 #151C3B

tetradic

#3B151C #2F3B15 #153B34 #21153B

square

#3B151C #2F3B15 #153B34 #21153B

split-complementary

#3B151C #153B21 #152F3B

monochromatic

#17080B #17080B #3B151C #682531 #953547

Accessibility & contrast

On white

16.03

#3B151C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#3B151C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B151C

16.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B151C	#FFFFFF	#000000	##FFFFFF
##3B151C	1.00	16.03	1.31	16.03
#FFFFFF	16.03	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1D1C

Deuteranopia (green-blind)

#27241B

Tritanopia (blue-blind)

#411018

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #3b151c;
/* rgb */ color: rgb(59, 21, 28);
/* oklch */ color: oklch(25.7% 0.060 10.9);

Tailwind

colors: {
  custom: {
    50: '#735457',
    500: '#3b151c',
    950: '#000000',
  },
}

SCSS

$custom: #3b151c;
$custom-light: #735457;
$custom-dark: #000000;

JSON

{
  "hex": "#3b151c",
  "rgb": {
    "r": 59,
    "g": 21,
    "b": 28
  },
  "hsl": {
    "h": 348.947,
    "s": 47.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.25696,
    "c": 0.06039,
    "h": 10.9
  },
  "luminance": 0.0155
}

Semantic roles & 50–950 ramp

primary

#3B151C

secondary

#397268

accent

#D7BE51

background

#F7F4F5

surface

#EDE7E9

border

#C8C3C5

text

#080303

muted

#7B7878

Preview Lab

Preview with #3B151C

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

Preview Lab → · Contrast checker → · Palette generator →