#3B0903#3B0903

#3B0903 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.4% C 0.079 H 32.1°. Best body text is #FFFFFF at 17.12:1 contrast (WCAG AA passes).

Color values

HEX	#3B0903
RGB	rgb(59, 9, 3)
HSL	hsl(6, 90%, 12%)
HSV	hsv(6, 95%, 23%)
CMYK	cmyk(0%, 84.7%, 94.9%, 76.9%)
CIE-LAB	lab(10.05, 23.86, 14.41)
CIE-LCH	lch(10.05, 27.87, 31.13°)
OKLab	oklab(23.37% 0.0671 0.0421)
OKLCH	oklch(23.37% 0.079 32.1)
XYZ	xyz(1.9180, 1.1321, 0.2036)
Luminance	0.0113 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B0903 #03353B

analogous

#3B0319 #3B0903 #3B2503

triadic

#3B0903 #033B09 #09033B

tetradic

#3B0903 #193B03 #03353B #25033B

square

#3B0903 #193B03 #03353B #25033B

split-complementary

#3B0903 #033B25 #03193B

monochromatic

#1D0401 #1D0401 #3B0903 #751206 #AF1B09

Accessibility & contrast

On white

17.12

#3B0903 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#3B0903 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B0903

17.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B0903	#FFFFFF	#000000	##FFFFFF
##3B0903	1.00	17.12	1.23	17.12
#FFFFFF	17.12	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181502

Deuteranopia (green-blind)

#252002

Tritanopia (blue-blind)

#420008

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3b0903;
/* rgb */ color: rgb(59, 9, 3);
/* oklch */ color: oklch(23.4% 0.079 32.1);

Tailwind

colors: {
  custom: {
    50: '#764d48',
    500: '#3b0903',
    950: '#000000',
  },
}

SCSS

$custom: #3b0903;
$custom-light: #764d48;
$custom-dark: #000000;

JSON

{
  "hex": "#3b0903",
  "rgb": {
    "r": 59,
    "g": 9,
    "b": 3
  },
  "hsl": {
    "h": 6.429,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.23367,
    "c": 0.0792,
    "h": 32.1
  },
  "luminance": 0.01132
}

Semantic roles & 50–950 ramp

primary

#3B0903

secondary

#1C737E

accent

#E8FF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #3B0903

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

Preview Lab → · Contrast checker → · Palette generator →