#A7371B#A7371B
#A7371B is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.7% C 0.153 H 34.9°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).
Color values
| HEX | #A7371B |
|---|---|
| RGB | rgb(167, 55, 27) |
| HSL | hsl(12, 72%, 38%) |
| HSV | hsv(12, 84%, 65%) |
| CMYK | cmyk(0%, 67.1%, 83.8%, 34.5%) |
| CIE-LAB | lab(39.63, 44.68, 41.08) |
| CIE-LCH | lch(39.63, 60.69, 42.60°) |
| OKLab | oklab(49.66% 0.1252 0.0872) |
| OKLCH | oklch(49.66% 0.153 34.9) |
| XYZ | xyz(17.5024, 11.0296, 2.2440) |
| Luminance | 0.1103 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Rusty Red
#AF2F0D
ΔE00 2.34
Brick
#A03623
ΔE00 2.79
Brownish Red
#9E3623
ΔE00 3.03
Rust Red
#AA2704
ΔE00 3.14
Burnt Red
#9F2305
ΔE00 4.18
Rust (survey)
#A83C09
ΔE00 4.54
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#A7371B #1B8BA7
analogous
#A71B45 #A7371B #A77D1B
triadic
#A7371B #1BA737 #371BA7
tetradic
#A7371B #45A71B #1B8BA7 #7D1BA7
square
#A7371B #45A71B #1B8BA7 #7D1BA7
split-complementary
#A7371B #1BA77D #1B45A7
monochromatic
#3E140A #722612 #A7371B #DC4824 #E47458
Accessibility & contrast
On white
6.55
#A7371B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.21
#A7371B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #A7371B
6.55:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##A7371B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##A7371B | 1.00 | 6.55 | 3.21 | 6.55 |
| #FFFFFF | 6.55 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.21 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.55 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#584E16
Deuteranopia (green-blind)
#736715
Tritanopia (blue-blind)
#B81432
Achromatopsia (no color)
#5D5D5D
Design tokens & code
CSS
--color: #a7371b; /* rgb */ color: rgb(167, 55, 27); /* oklch */ color: oklch(49.7% 0.153 34.9);
Tailwind
colors: {
custom: {
50: '#ca745a',
500: '#a7371b',
950: '#000000',
},
}SCSS
$custom: #a7371b; $custom-light: #ca745a; $custom-dark: #000000;
JSON
{
"hex": "#a7371b",
"rgb": {
"r": 167,
"g": 55,
"b": 27
},
"hsl": {
"h": 12,
"s": 72.165,
"l": 38.039
},
"oklch": {
"l": 0.49657,
"c": 0.15253,
"h": 34.9
},
"luminance": 0.11027
}Semantic roles & 50–950 ramp
primary
#A7371B
secondary
#56B1C8
accent
#CAEF39
background
#FDF7F5
surface
#FBEDE9
border
#D4C8C5
text
#150804
muted
#837B79