#A64731#A64731
#A64731 is a mid, vivid red. Relative luminance 0.128; OKLCH L 51.9% C 0.131 H 34.4°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).
Color values
| HEX | #A64731 |
|---|---|
| RGB | rgb(166, 71, 49) |
| HSL | hsl(11, 54%, 42%) |
| HSV | hsv(11, 70%, 65%) |
| CMYK | cmyk(0%, 57.2%, 70.5%, 34.9%) |
| CIE-LAB | lab(42.52, 37.72, 32.22) |
| CIE-LCH | lch(42.52, 49.61, 40.51°) |
| OKLab | oklab(51.88% 0.1079 0.0739) |
| OKLCH | oklch(51.88% 0.131 34.4) |
| XYZ | xyz(18.5353, 12.8376, 4.4070) |
| Luminance | 0.1283 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Brick
#A03623
ΔE00 4.20
Brownish Red
#9E3623
ΔE00 4.38
Sienna
#A0522D
ΔE00 5.87
Rusty Red
#AF2F0D
ΔE00 6.20
Firebrick
#B22222
ΔE00 7.03
Rust (survey)
#A83C09
ΔE00 7.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#A64731 #3190A6
analogous
#A63156 #A64731 #A68231
triadic
#A64731 #31A647 #4731A6
tetradic
#A64731 #56A631 #3190A6 #8231A6
square
#A64731 #56A631 #3190A6 #8231A6
split-complementary
#A64731 #31A682 #3156A6
monochromatic
#471F15 #773323 #A64731 #CA624A #D88B7A
Accessibility & contrast
On white
5.89
#A64731 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.57
#A64731 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #A64731
5.89:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##A64731 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##A64731 | 1.00 | 5.89 | 3.57 | 5.89 |
| #FFFFFF | 5.89 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.57 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.89 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#60572E
Deuteranopia (green-blind)
#786C2F
Tritanopia (blue-blind)
#B63342
Achromatopsia (no color)
#646464
Design tokens & code
CSS
--color: #a64731; /* rgb */ color: rgb(166, 71, 49); /* oklch */ color: oklch(51.9% 0.131 34.4);
Tailwind
colors: {
custom: {
50: '#c77d6a',
500: '#a64731',
950: '#000000',
},
}SCSS
$custom: #a64731; $custom-light: #c77d6a; $custom-dark: #000000;
JSON
{
"hex": "#a64731",
"rgb": {
"r": 166,
"g": 71,
"b": 49
},
"hsl": {
"h": 11.282,
"s": 54.419,
"l": 42.157
},
"oklch": {
"l": 0.51875,
"c": 0.13078,
"h": 34.4
},
"luminance": 0.12835
}Semantic roles & 50–950 ramp
primary
#A64731
secondary
#73B2C0
accent
#C2DE4A
background
#FDF7F6
surface
#FAEEEB
border
#D3C9C6
text
#140A06
muted
#837C7A