#240B03#240B03

#240B03 is a very dark, muted red. Relative luminance 0.006; OKLCH L 18.8% C 0.046 H 41.8°. Best body text is #FFFFFF at 18.68:1 contrast (WCAG AA passes).

Color values

HEX	#240B03
RGB	rgb(36, 11, 3)
HSL	hsl(15, 85%, 8%)
HSV	hsv(15, 92%, 14%)
CMYK	cmyk(0%, 69.4%, 91.7%, 85.9%)
CIE-LAB	lab(5.61, 11.19, 7.38)
CIE-LCH	lch(5.61, 13.40, 33.39°)
OKLab	oklab(18.85% 0.0346 0.031)
OKLCH	oklch(18.85% 0.046 41.8)
XYZ	xyz(0.8637, 0.6211, 0.1605)
Luminance	0.0062 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#240B03 #031C24

analogous

#24030C #240B03 #241B03

triadic

#240B03 #03240B #0B0324

tetradic

#240B03 #0C2403 #031C24 #1B0324

square

#240B03 #0C2403 #031C24 #1B0324

split-complementary

#240B03 #03241B #030C24

monochromatic

#1C0902 #1C0902 #240B03 #5C1C08 #952E0C

Accessibility & contrast

On white

18.68

#240B03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#240B03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #240B03

18.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##240B03	#FFFFFF	#000000	##FFFFFF
##240B03	1.00	18.68	1.12	18.68
#FFFFFF	18.68	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#120F02

Deuteranopia (green-blind)

#181403

Tritanopia (blue-blind)

#290609

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #240b03;
/* rgb */ color: rgb(36, 11, 3);
/* oklch */ color: oklch(18.8% 0.046 41.8);

Tailwind

colors: {
  custom: {
    50: '#5f4b48',
    500: '#240b03',
    950: '#000000',
  },
}

SCSS

$custom: #240b03;
$custom-light: #5f4b48;
$custom-dark: #000000;

JSON

{
  "hex": "#240b03",
  "rgb": {
    "r": 36,
    "g": 11,
    "b": 3
  },
  "hsl": {
    "h": 14.545,
    "s": 84.615,
    "l": 7.647
  },
  "oklch": {
    "l": 0.18849,
    "c": 0.04643,
    "h": 41.8
  },
  "luminance": 0.00621
}

Semantic roles & 50–950 ramp

primary

#240B03

secondary

#1B5568

accent

#C9FB2D

background

#F5F4F4

surface

#E9E7E6

border

#C5C3C2

text

#050100

muted

#797777

Preview Lab

Preview with #240B03

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

Preview Lab → · Contrast checker → · Palette generator →