#180100#180100

#180100 is a very dark, muted red. Relative luminance 0.002; OKLCH L 13.5% C 0.050 H 32.6°. Best body text is #FFFFFF at 20.13:1 contrast (WCAG AA passes).

Color values

HEX	#180100
RGB	rgb(24, 1, 0)
HSL	hsl(3, 100%, 5%)
HSV	hsv(3, 100%, 9%)
CMYK	cmyk(0%, 95.8%, 100%, 90.6%)
CIE-LAB	lab(1.95, 7.47, 3.06)
CIE-LCH	lch(1.95, 8.07, 22.28°)
OKLab	oklab(13.51% 0.0424 0.0272)
OKLCH	oklch(13.51% 0.05 32.6)
XYZ	xyz(0.3876, 0.2160, 0.0213)
Luminance	0.0022 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180100 #001718

analogous

#18000B #180100 #180D00

triadic

#180100 #001801 #010018

tetradic

#180100 #0B1800 #001718 #0D0018

square

#180100 #0B1800 #001718 #0D0018

split-complementary

#180100 #00180D #000B18

monochromatic

#1F0100 #1F0100 #1F0100 #550400 #920600

Accessibility & contrast

On white

20.13

#180100 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.04

#180100 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180100

20.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180100	#FFFFFF	#000000	##FFFFFF
##180100	1.00	20.13	1.04	20.13
#FFFFFF	20.13	1.00	21.00	1.00
#000000	1.04	21.00	1.00	21.00
##FFFFFF	20.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#060400

Deuteranopia (green-blind)

#0C0900

Tritanopia (blue-blind)

#1C0001

Achromatopsia (no color)

#070707

Design tokens & code

CSS

--color: #180100;
/* rgb */ color: rgb(24, 1, 0);
/* oklch */ color: oklch(13.5% 0.050 32.6);

Tailwind

colors: {
  custom: {
    50: '#534747',
    500: '#180100',
    950: '#000000',
  },
}

SCSS

$custom: #180100;
$custom-light: #534747;
$custom-dark: #000000;

JSON

{
  "hex": "#180100",
  "rgb": {
    "r": 24,
    "g": 1,
    "b": 0
  },
  "hsl": {
    "h": 2.5,
    "s": 100,
    "l": 4.706
  },
  "oklch": {
    "l": 0.13512,
    "c": 0.05035,
    "h": 32.6
  },
  "luminance": 0.00216
}

Semantic roles & 50–950 ramp

primary

#180100

secondary

#115F62

accent

#F6FF29

background

#F4F3F3

surface

#E7E5E5

border

#C3C1C1

text

#020000

muted

#787777

Preview Lab

Preview with #180100

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

Preview Lab → · Contrast checker → · Palette generator →