#331B1F#331B1F
#331B1F is a dark, muted red. Relative luminance 0.016; OKLCH L 25.6% C 0.038 H 9.4°. Best body text is #FFFFFF at 15.94:1 contrast (WCAG AA passes).
Color values
| HEX | #331B1F |
|---|---|
| RGB | rgb(51, 27, 31) |
| HSL | hsl(350, 31%, 15%) |
| HSV | hsv(350, 47%, 20%) |
| CMYK | cmyk(0%, 47.1%, 39.2%, 80%) |
| CIE-LAB | lab(13.15, 12.50, 2.35) |
| CIE-LCH | lch(13.15, 12.72, 10.64°) |
| OKLab | oklab(25.61% 0.0379 0.0063) |
| OKLCH | oklch(25.61% 0.038 9.4) |
| XYZ | xyz(2.0046, 1.5868, 1.4968) |
| Luminance | 0.0159 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Very Dark Brown
#1D0200
ΔE00 7.03
Dark Maroon
#3C0008
ΔE00 10.54
Deep Brown
#410200
ΔE00 11.74
Chocolate Brown
#411900
ΔE00 12.94
Dark Plum
#3F012C
ΔE00 13.00
Chocolate (survey)
#3D1C02
ΔE00 13.04
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#331B1F #1B332F
analogous
#331B2B #331B1F #33231B
triadic
#331B1F #1F331B #1B1F33
tetradic
#331B1F #2B331B #1B332F #231B33
square
#331B1F #2B331B #1B332F #231B33
split-complementary
#331B1F #1B3323 #1B2B33
monochromatic
#140B0C #140B0C #331B1F #5B3037 #834550
Accessibility & contrast
On white
15.94
#331B1F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.32
#331B1F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #331B1F
15.94:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##331B1F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##331B1F | 1.00 | 15.94 | 1.32 | 15.94 |
| #FFFFFF | 15.94 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.32 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 15.94 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1F1F1F
Deuteranopia (green-blind)
#25241F
Tritanopia (blue-blind)
#37191C
Achromatopsia (no color)
#222222
Design tokens & code
CSS
--color: #331b1f; /* rgb */ color: rgb(51, 27, 31); /* oklch */ color: oklch(25.6% 0.038 9.4);
Tailwind
colors: {
custom: {
50: '#6c575a',
500: '#331b1f',
950: '#000000',
},
}SCSS
$custom: #331b1f; $custom-light: #6c575a; $custom-dark: #000000;
JSON
{
"hex": "#331b1f",
"rgb": {
"r": 51,
"g": 27,
"b": 31
},
"hsl": {
"h": 350,
"s": 30.769,
"l": 15.294
},
"oklch": {
"l": 0.25611,
"c": 0.03841,
"h": 9.4
},
"luminance": 0.01587
}Semantic roles & 50–950 ramp
primary
#331B1F
secondary
#436761
accent
#C7B661
background
#F6F5F5
surface
#EBE9E9
border
#C6C5C5
text
#070303
muted
#7A7878