#240B0B#240B0B

#240B0B is a very dark, muted red. Relative luminance 0.006; OKLCH L 19.1% C 0.043 H 22.0°. Best body text is #FFFFFF at 18.62:1 contrast (WCAG AA passes).

Color values

HEX	#240B0B
RGB	rgb(36, 11, 11)
HSL	hsl(0, 53%, 9%)
HSV	hsv(0, 69%, 14%)
CMYK	cmyk(0%, 69.4%, 69.4%, 85.9%)
CIE-LAB	lab(5.77, 12.25, 4.34)
CIE-LCH	lch(5.77, 12.99, 19.51°)
OKLab	oklab(19.06% 0.0397 0.016)
OKLCH	oklch(19.06% 0.043 22)
XYZ	xyz(0.9077, 0.6387, 0.3920)
Luminance	0.0064 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#240B0B #0B2424

analogous

#240B18 #240B0B #24180B

triadic

#240B0B #0B240B #0B0B24

tetradic

#240B0B #18240B #0B2424 #180B24

square

#240B0B #18240B #0B2424 #180B24

split-complementary

#240B0B #0B2418 #0B1824

monochromatic

#170707 #170707 #240B0B #531919 #822828

Accessibility & contrast

On white

18.62

#240B0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#240B0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #240B0B

18.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##240B0B	#FFFFFF	#000000	##FFFFFF
##240B0B	1.00	18.62	1.13	18.62
#FFFFFF	18.62	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11100B

Deuteranopia (green-blind)

#17150A

Tritanopia (blue-blind)

#28070B

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #240b0b;
/* rgb */ color: rgb(36, 11, 11);
/* oklch */ color: oklch(19.1% 0.043 22.0);

Tailwind

colors: {
  custom: {
    50: '#5f4b4c',
    500: '#240b0b',
    950: '#000000',
  },
}

SCSS

$custom: #240b0b;
$custom-light: #5f4b4c;
$custom-dark: #000000;

JSON

{
  "hex": "#240b0b",
  "rgb": {
    "r": 36,
    "g": 11,
    "b": 11
  },
  "hsl": {
    "h": 0,
    "s": 53.191,
    "l": 9.216
  },
  "oklch": {
    "l": 0.19064,
    "c": 0.04282,
    "h": 22
  },
  "luminance": 0.00639
}

Semantic roles & 50–950 ramp

primary

#240B0B

secondary

#2C5F5F

accent

#DDDD4B

background

#F5F4F4

surface

#E9E7E7

border

#C5C3C3

text

#050101

muted

#797777

Preview Lab

Preview with #240B0B

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

Preview Lab → · Contrast checker → · Palette generator →