#38100B#38100B
#38100B is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.9% C 0.065 H 29.8°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).
Color values
| HEX | #38100B |
|---|---|
| RGB | rgb(56, 16, 11) |
| HSL | hsl(7, 67%, 13%) |
| HSV | hsv(7, 80%, 22%) |
| CMYK | cmyk(0%, 71.4%, 80.4%, 78%) |
| CIE-LAB | lab(10.82, 19.55, 12.13) |
| CIE-LCH | lch(10.82, 23.00, 31.82°) |
| OKLab | oklab(23.87% 0.0565 0.0323) |
| OKLCH | oklch(23.87% 0.065 29.8) |
| XYZ | xyz(1.8768, 1.2358, 0.4562) |
| Luminance | 0.0123 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Deep Brown
#410200
ΔE00 4.82
Dark Maroon
#3C0008
ΔE00 5.66
Mahogany
#4A0100
ΔE00 6.45
Dried Blood
#4B0101
ΔE00 6.59
Chocolate Brown
#411900
ΔE00 7.53
Chocolate (survey)
#3D1C02
ΔE00 8.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#38100B #0B3338
analogous
#380B1C #38100B #38260B
triadic
#38100B #0B3810 #100B38
tetradic
#38100B #1C380B #0B3338 #260B38
square
#38100B #1C380B #0B3338 #260B38
split-complementary
#38100B #0B3826 #0B1C38
monochromatic
#1A0705 #1A0705 #38100B #6B1F15 #9E2D1F
Accessibility & contrast
On white
16.84
#38100B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.25
#38100B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #38100B
16.84:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##38100B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##38100B | 1.00 | 16.84 | 1.25 | 16.84 |
| #FFFFFF | 16.84 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.25 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.84 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1B180A
Deuteranopia (green-blind)
#25200A
Tritanopia (blue-blind)
#3E070F
Achromatopsia (no color)
#1D1D1D
Design tokens & code
CSS
--color: #38100b; /* rgb */ color: rgb(56, 16, 11); /* oklch */ color: oklch(23.9% 0.065 29.8);
Tailwind
colors: {
custom: {
50: '#72504b',
500: '#38100b',
950: '#000000',
},
}SCSS
$custom: #38100b; $custom-light: #72504b; $custom-dark: #000000;
JSON
{
"hex": "#38100b",
"rgb": {
"r": 56,
"g": 16,
"b": 11
},
"hsl": {
"h": 6.667,
"s": 67.164,
"l": 13.137
},
"oklch": {
"l": 0.23865,
"c": 0.06509,
"h": 29.8
},
"luminance": 0.01235
}Semantic roles & 50–950 ramp
primary
#38100B
secondary
#2A6C75
accent
#D7EA3E
background
#F7F4F4
surface
#EDE7E7
border
#C8C3C3
text
#080201
muted
#7B7877