#180300#180300
#180300 is a very dark, muted red. Relative luminance 0.003; OKLCH L 14.2% C 0.045 H 39.8°. Best body text is #FFFFFF at 19.97:1 contrast (WCAG AA passes).
Color values
| HEX | #180300 |
|---|---|
| RGB | rgb(24, 3, 0) |
| HSL | hsl(8, 100%, 5%) |
| HSV | hsv(8, 100%, 9%) |
| CMYK | cmyk(0%, 87.5%, 100%, 90.6%) |
| CIE-LAB | lab(2.34, 6.67, 3.63) |
| CIE-LCH | lch(2.34, 7.59, 28.58°) |
| OKLab | oklab(14.22% 0.0345 0.0287) |
| OKLCH | oklch(14.22% 0.045 39.8) |
| XYZ | xyz(0.4093, 0.2594, 0.0285) |
| Luminance | 0.0026 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Very Dark Brown
#1D0200
ΔE00 3.01
Black
#000000
ΔE00 8.69
Almost Black
#070D0D
ΔE00 11.44
Dark Brown
#341C02
ΔE00 12.35
Chocolate (survey)
#3D1C02
ΔE00 13.96
Chocolate Brown
#411900
ΔE00 14.77
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#180300 #001518
analogous
#180009 #180300 #180F00
triadic
#180300 #001803 #030018
tetradic
#180300 #091800 #001518 #0F0018
square
#180300 #091800 #001518 #0F0018
split-complementary
#180300 #00180F #000918
monochromatic
#1F0400 #1F0400 #1F0400 #550B00 #921200
Accessibility & contrast
On white
19.97
#180300 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.05
#180300 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #180300
19.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##180300 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##180300 | 1.00 | 19.97 | 1.05 | 19.97 |
| #FFFFFF | 19.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.05 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 19.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#080600
Deuteranopia (green-blind)
#0D0A00
Tritanopia (blue-blind)
#1C0002
Achromatopsia (no color)
#090909
Design tokens & code
CSS
--color: #180300; /* rgb */ color: rgb(24, 3, 0); /* oklch */ color: oklch(14.2% 0.045 39.8);
Tailwind
colors: {
custom: {
50: '#534847',
500: '#180300',
950: '#000000',
},
}SCSS
$custom: #180300; $custom-light: #534847; $custom-dark: #000000;
JSON
{
"hex": "#180300",
"rgb": {
"r": 24,
"g": 3,
"b": 0
},
"hsl": {
"h": 7.5,
"s": 100,
"l": 4.706
},
"oklch": {
"l": 0.14218,
"c": 0.04483,
"h": 39.8
},
"luminance": 0.00259
}Semantic roles & 50–950 ramp
primary
#180300
secondary
#115862
accent
#E4FF29
background
#F4F4F3
surface
#E7E6E5
border
#C3C2C1
text
#020000
muted
#787777