#370F0A#370F0A
#370F0A is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.5% C 0.065 H 29.9°. Best body text is #FFFFFF at 17.00:1 contrast (WCAG AA passes).
Color values
| HEX | #370F0A |
|---|---|
| RGB | rgb(55, 15, 10) |
| HSL | hsl(7, 69%, 13%) |
| HSV | hsv(7, 82%, 22%) |
| CMYK | cmyk(0%, 72.7%, 81.8%, 78.4%) |
| CIE-LAB | lab(10.38, 19.60, 11.90) |
| CIE-LCH | lch(10.38, 22.93, 31.26°) |
| OKLab | oklab(23.49% 0.0566 0.0325) |
| OKLCH | oklch(23.49% 0.065 29.9) |
| XYZ | xyz(1.8013, 1.1760, 0.4192) |
| Luminance | 0.0118 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Deep Brown
#410200
ΔE00 4.80
Dark Maroon
#3C0008
ΔE00 5.48
Mahogany
#4A0100
ΔE00 6.53
Dried Blood
#4B0101
ΔE00 6.67
Chocolate Brown
#411900
ΔE00 7.80
Chocolate (survey)
#3D1C02
ΔE00 9.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#370F0A #0A3237
analogous
#370A1B #370F0A #37250A
triadic
#370F0A #0A370F #0F0A37
tetradic
#370F0A #1B370A #0A3237 #250A37
square
#370F0A #1B370A #0A3237 #250A37
split-complementary
#370F0A #0A3725 #0A1B37
monochromatic
#1A0705 #1A0705 #370F0A #6B1D13 #9F2B1D
Accessibility & contrast
On white
17.00
#370F0A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.24
#370F0A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #370F0A
17.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##370F0A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##370F0A | 1.00 | 17.00 | 1.24 | 17.00 |
| #FFFFFF | 17.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.24 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1A1709
Deuteranopia (green-blind)
#241F09
Tritanopia (blue-blind)
#3D060E
Achromatopsia (no color)
#1C1C1C
Design tokens & code
CSS
--color: #370f0a; /* rgb */ color: rgb(55, 15, 10); /* oklch */ color: oklch(23.5% 0.065 29.9);
Tailwind
colors: {
custom: {
50: '#714f4b',
500: '#370f0a',
950: '#000000',
},
}SCSS
$custom: #370f0a; $custom-light: #714f4b; $custom-dark: #000000;
JSON
{
"hex": "#370f0a",
"rgb": {
"r": 55,
"g": 15,
"b": 10
},
"hsl": {
"h": 6.667,
"s": 69.231,
"l": 12.745
},
"oklch": {
"l": 0.23489,
"c": 0.06523,
"h": 29.9
},
"luminance": 0.01176
}Semantic roles & 50–950 ramp
primary
#370F0A
secondary
#286C74
accent
#D8EC3C
background
#F7F4F4
surface
#EDE7E7
border
#C8C3C3
text
#080201
muted
#7B7877