#240B05#240B05

#240B05 is a very dark, muted red. Relative luminance 0.006; OKLCH L 18.9% C 0.045 H 36.6°. Best body text is #FFFFFF at 18.67:1 contrast (WCAG AA passes).

Color values

HEX	#240B05
RGB	rgb(36, 11, 5)
HSL	hsl(12, 76%, 8%)
HSV	hsv(12, 86%, 14%)
CMYK	cmyk(0%, 69.4%, 86.1%, 85.9%)
CIE-LAB	lab(5.65, 11.46, 6.62)
CIE-LCH	lch(5.65, 13.24, 30.01°)
OKLab	oklab(18.9% 0.0361 0.0268)
OKLCH	oklch(18.9% 0.045 36.6)
XYZ	xyz(0.8747, 0.6255, 0.2182)
Luminance	0.0063 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#240B05 #051E24

analogous

#24050E #240B05 #241A05

triadic

#240B05 #05240B #0B0524

tetradic

#240B05 #0E2405 #051E24 #1A0524

square

#240B05 #0E2405 #051E24 #1A0524

split-complementary

#240B05 #05241A #050E24

monochromatic

#1B0804 #1B0804 #240B05 #5A1B0C #8F2C14

Accessibility & contrast

On white

18.67

#240B05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#240B05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #240B05

18.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##240B05	#FFFFFF	#000000	##FFFFFF
##240B05	1.00	18.67	1.13	18.67
#FFFFFF	18.67	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#120F05

Deuteranopia (green-blind)

#181505

Tritanopia (blue-blind)

#280609

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #240b05;
/* rgb */ color: rgb(36, 11, 5);
/* oklch */ color: oklch(18.9% 0.045 36.6);

Tailwind

colors: {
  custom: {
    50: '#5f4b49',
    500: '#240b05',
    950: '#000000',
  },
}

SCSS

$custom: #240b05;
$custom-light: #5f4b49;
$custom-dark: #000000;

JSON

{
  "hex": "#240b05",
  "rgb": {
    "r": 36,
    "g": 11,
    "b": 5
  },
  "hsl": {
    "h": 11.613,
    "s": 75.61,
    "l": 8.039
  },
  "oklch": {
    "l": 0.18903,
    "c": 0.04496,
    "h": 36.6
  },
  "luminance": 0.00625
}

Semantic roles & 50–950 ramp

primary

#240B05

secondary

#1F5866

accent

#CEF236

background

#F5F4F4

surface

#E9E7E6

border

#C5C3C2

text

#050100

muted

#797777

Preview Lab

Preview with #240B05

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

Preview Lab → · Contrast checker → · Palette generator →