#180B03#180B03

#180B03 is a very dark, muted orange. Relative luminance 0.004; OKLCH L 16.6% C 0.029 H 57.6°. Best body text is #FFFFFF at 19.30:1 contrast (WCAG AA passes).

Color values

HEX	#180B03
RGB	rgb(24, 11, 3)
HSL	hsl(23, 78%, 5%)
HSV	hsv(23, 88%, 9%)
CMYK	cmyk(0%, 54.2%, 87.5%, 90.6%)
CIE-LAB	lab(3.98, 3.87, 4.79)
CIE-LCH	lch(3.98, 6.16, 51.11°)
OKLab	oklab(16.6% 0.0158 0.0249)
OKLCH	oklch(16.6% 0.03 57.6)
XYZ	xyz(0.5128, 0.4402, 0.1441)
Luminance	0.0044 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180B03 #031018

analogous

#180305 #180B03 #181503

triadic

#180B03 #03180B #0B0318

tetradic

#180B03 #051803 #031018 #150318

square

#180B03 #051803 #031018 #150318

split-complementary

#180B03 #031815 #030518

monochromatic

#1B0C03 #1B0C03 #1B0C03 #4E240A #853D11

Accessibility & contrast

On white

19.30

#180B03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#180B03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180B03

19.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180B03	#FFFFFF	#000000	##FFFFFF
##180B03	1.00	19.30	1.09	19.30
#FFFFFF	19.30	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F0C03

Deuteranopia (green-blind)

#120F03

Tritanopia (blue-blind)

#1B0809

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #180b03;
/* rgb */ color: rgb(24, 11, 3);
/* oklch */ color: oklch(16.6% 0.029 57.6);

Tailwind

colors: {
  custom: {
    50: '#544b48',
    500: '#180b03',
    950: '#000000',
  },
}

SCSS

$custom: #180b03;
$custom-light: #544b48;
$custom-dark: #000000;

JSON

{
  "hex": "#180b03",
  "rgb": {
    "r": 24,
    "g": 11,
    "b": 3
  },
  "hsl": {
    "h": 22.857,
    "s": 77.778,
    "l": 5.294
  },
  "oklch": {
    "l": 0.16601,
    "c": 0.0295,
    "h": 57.6
  },
  "luminance": 0.0044
}

Semantic roles & 50–950 ramp

primary

#180B03

secondary

#1B435C

accent

#ABF434

background

#F4F4F4

surface

#E7E7E6

border

#C3C3C2

text

#020100

muted

#787777

Preview Lab

Preview with #180B03

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

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