#210903#210903
#210903 is a very dark, muted red. Relative luminance 0.005; OKLCH L 17.8% C 0.044 H 39.3°. Best body text is #FFFFFF at 19.00:1 contrast (WCAG AA passes).
Color values
| HEX | #210903 |
|---|---|
| RGB | rgb(33, 9, 3) |
| HSL | hsl(12, 83%, 7%) |
| HSV | hsv(12, 91%, 13%) |
| CMYK | cmyk(0%, 72.7%, 90.9%, 87.1%) |
| CIE-LAB | lab(4.75, 9.91, 6.06) |
| CIE-LCH | lch(4.75, 11.62, 31.43°) |
| OKLab | oklab(17.85% 0.0344 0.0282) |
| OKLCH | oklch(17.85% 0.044 39.3) |
| XYZ | xyz(0.7414, 0.5254, 0.1485) |
| Luminance | 0.0053 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Very Dark Brown
#1D0200
ΔE00 1.81
Dark Brown
#341C02
ΔE00 10.68
Chocolate (survey)
#3D1C02
ΔE00 11.43
Dark Maroon
#3C0008
ΔE00 11.71
Chocolate Brown
#411900
ΔE00 11.85
Black
#000000
ΔE00 12.10
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#210903 #031B21
analogous
#21030C #210903 #211803
triadic
#210903 #032109 #090321
tetradic
#210903 #0C2103 #031B21 #180321
square
#210903 #0C2103 #031B21 #180321
split-complementary
#210903 #032118 #030C21
monochromatic
#1C0803 #1C0803 #210903 #591808 #91280D
Accessibility & contrast
On white
19.00
#210903 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.11
#210903 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #210903
19.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##210903 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##210903 | 1.00 | 19.00 | 1.11 | 19.00 |
| #FFFFFF | 19.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.11 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 19.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#100D03
Deuteranopia (green-blind)
#151203
Tritanopia (blue-blind)
#250507
Achromatopsia (no color)
#101010
Design tokens & code
CSS
--color: #210903; /* rgb */ color: rgb(33, 9, 3); /* oklch */ color: oklch(17.8% 0.044 39.3);
Tailwind
colors: {
custom: {
50: '#5c4a48',
500: '#210903',
950: '#000000',
},
}SCSS
$custom: #210903; $custom-light: #5c4a48; $custom-dark: #000000;
JSON
{
"hex": "#210903",
"rgb": {
"r": 33,
"g": 9,
"b": 3
},
"hsl": {
"h": 12,
"s": 83.333,
"l": 7.059
},
"oklch": {
"l": 0.17845,
"c": 0.04445,
"h": 39.3
},
"luminance": 0.00525
}Semantic roles & 50–950 ramp
primary
#210903
secondary
#1B5665
accent
#D1FA2E
background
#F5F4F4
surface
#E9E7E6
border
#C5C3C2
text
#040100
muted
#797777