#3B0503#3B0503

#3B0503 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.9% C 0.084 H 29.2°. Best body text is #FFFFFF at 17.37:1 contrast (WCAG AA passes).

Color values

HEX	#3B0503
RGB	rgb(59, 5, 3)
HSL	hsl(2, 90%, 12%)
HSV	hsv(2, 95%, 23%)
CMYK	cmyk(0%, 91.5%, 94.9%, 76.9%)
CIE-LAB	lab(9.36, 25.77, 13.44)
CIE-LCH	lch(9.36, 29.06, 27.54°)
OKLab	oklab(22.86% 0.073 0.0407)
OKLCH	oklch(22.86% 0.084 29.2)
XYZ	xyz(1.8746, 1.0452, 0.1892)
Luminance	0.0104 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B0503 #03393B

analogous

#3B031D #3B0503 #3B2103

triadic

#3B0503 #033B05 #05033B

tetradic

#3B0503 #1D3B03 #03393B #21033B

square

#3B0503 #1D3B03 #03393B #21033B

split-complementary

#3B0503 #033B21 #031D3B

monochromatic

#1D0201 #1D0201 #3B0503 #750A06 #AF0F09

Accessibility & contrast

On white

17.37

#3B0503 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#3B0503 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B0503

17.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B0503	#FFFFFF	#000000	##FFFFFF
##3B0503	1.00	17.37	1.21	17.37
#FFFFFF	17.37	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161302

Deuteranopia (green-blind)

#231E01

Tritanopia (blue-blind)

#420005

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #3b0503;
/* rgb */ color: rgb(59, 5, 3);
/* oklch */ color: oklch(22.9% 0.084 29.2);

Tailwind

colors: {
  custom: {
    50: '#764b48',
    500: '#3b0503',
    950: '#000000',
  },
}

SCSS

$custom: #3b0503;
$custom-light: #764b48;
$custom-dark: #000000;

JSON

{
  "hex": "#3b0503",
  "rgb": {
    "r": 59,
    "g": 5,
    "b": 3
  },
  "hsl": {
    "h": 2.143,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22858,
    "c": 0.08363,
    "h": 29.2
  },
  "luminance": 0.01045
}

Semantic roles & 50–950 ramp

primary

#3B0503

secondary

#1C7A7E

accent

#F7FF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #3B0503

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

Preview Lab → · Contrast checker → · Palette generator →