#A1311F#A1311F
#A1311F is a mid, vivid red. Relative luminance 0.099; OKLCH L 47.9% C 0.151 H 31.8°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).
Color values
| HEX | #A1311F |
|---|---|
| RGB | rgb(161, 49, 31) |
| HSL | hsl(8, 68%, 38%) |
| HSV | hsv(8, 81%, 63%) |
| CMYK | cmyk(0%, 69.6%, 80.7%, 36.9%) |
| CIE-LAB | lab(37.62, 45.23, 36.70) |
| CIE-LCH | lch(37.62, 58.25, 39.06°) |
| OKLab | oklab(47.95% 0.1282 0.0795) |
| OKLCH | oklch(47.95% 0.151 31.8) |
| XYZ | xyz(16.0454, 9.8750, 2.3573) |
| Luminance | 0.0987 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Brick
#A03623
ΔE00 0.98
Brownish Red
#9E3623
ΔE00 1.09
Burnt Red
#9F2305
ΔE00 4.16
Firebrick
#B22222
ΔE00 4.27
Rust Red
#AA2704
ΔE00 4.55
Brown
#A52A2A
ΔE00 4.59
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#A1311F #1F8FA1
analogous
#A11F4E #A1311F #A1721F
triadic
#A1311F #1FA131 #311FA1
tetradic
#A1311F #4EA11F #1F8FA1 #721FA1
square
#A1311F #4EA11F #1F8FA1 #721FA1
split-complementary
#A1311F #1FA172 #1F4EA1
monochromatic
#3A120B #6E2115 #A1311F #D44129 #DF6D5B
Accessibility & contrast
On white
7.06
#A1311F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.97
#A1311F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #A1311F
7.06:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##A1311F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##A1311F | 1.00 | 7.06 | 2.97 | 7.06 |
| #FFFFFF | 7.06 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.97 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.06 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#52491C
Deuteranopia (green-blind)
#6D621A
Tritanopia (blue-blind)
#B2092E
Achromatopsia (no color)
#585858
Design tokens & code
CSS
--color: #a1311f; /* rgb */ color: rgb(161, 49, 31); /* oklch */ color: oklch(47.9% 0.151 31.8);
Tailwind
colors: {
custom: {
50: '#c5705c',
500: '#a1311f',
950: '#000000',
},
}SCSS
$custom: #a1311f; $custom-light: #c5705c; $custom-dark: #000000;
JSON
{
"hex": "#a1311f",
"rgb": {
"r": 161,
"g": 49,
"b": 31
},
"hsl": {
"h": 8.308,
"s": 67.708,
"l": 37.647
},
"oklch": {
"l": 0.4795,
"c": 0.15087,
"h": 31.8
},
"luminance": 0.09873
}Semantic roles & 50–950 ramp
primary
#A1311F
secondary
#58B5C4
accent
#D3EB3D
background
#FDF7F5
surface
#FAEDE9
border
#D3C8C5
text
#140804
muted
#837B79