#230B04#230B04

#230B04 is a very dark, muted red. Relative luminance 0.006; OKLCH L 18.7% C 0.044 H 39.8°. Best body text is #FFFFFF at 18.73:1 contrast (WCAG AA passes).

Color values

HEX	#230B04
RGB	rgb(35, 11, 4)
HSL	hsl(14, 79%, 8%)
HSV	hsv(14, 89%, 14%)
CMYK	cmyk(0%, 68.6%, 88.6%, 86.3%)
CIE-LAB	lab(5.47, 10.62, 6.74)
CIE-LCH	lch(5.47, 12.58, 32.41°)
OKLab	oklab(18.68% 0.0339 0.0283)
OKLCH	oklch(18.68% 0.044 39.8)
XYZ	xyz(0.8348, 0.6055, 0.1878)
Luminance	0.0060 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#230B04 #041C23

analogous

#23040D #230B04 #231A04

triadic

#230B04 #04230B #0B0423

tetradic

#230B04 #0D2304 #041C23 #1A0423

square

#230B04 #0D2304 #041C23 #1A0423

split-complementary

#230B04 #04231A #040D23

monochromatic

#1B0903 #1B0903 #230B04 #5A1C0A #912E11

Accessibility & contrast

On white

18.73

#230B04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#230B04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #230B04

18.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##230B04	#FFFFFF	#000000	##FFFFFF
##230B04	1.00	18.73	1.12	18.73
#FFFFFF	18.73	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#120F03

Deuteranopia (green-blind)

#171404

Tritanopia (blue-blind)

#270709

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #230b04;
/* rgb */ color: rgb(35, 11, 4);
/* oklch */ color: oklch(18.7% 0.044 39.8);

Tailwind

colors: {
  custom: {
    50: '#5e4b48',
    500: '#230b04',
    950: '#000000',
  },
}

SCSS

$custom: #230b04;
$custom-light: #5e4b48;
$custom-dark: #000000;

JSON

{
  "hex": "#230b04",
  "rgb": {
    "r": 35,
    "g": 11,
    "b": 4
  },
  "hsl": {
    "h": 13.548,
    "s": 79.487,
    "l": 7.647
  },
  "oklch": {
    "l": 0.18679,
    "c": 0.04417,
    "h": 39.8
  },
  "luminance": 0.00605
}

Semantic roles & 50–950 ramp

primary

#230B04

secondary

#1D5566

accent

#CAF632

background

#F5F4F4

surface

#E9E7E6

border

#C5C3C2

text

#040100

muted

#797777

Preview Lab

Preview with #230B04

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

Preview Lab → · Contrast checker → · Palette generator →