#B74731#B74731
#B74731 is a mid, vivid red. Relative luminance 0.148; OKLCH L 54.6% C 0.150 H 33.0°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).
Color values
| HEX | #B74731 |
|---|---|
| RGB | rgb(183, 71, 49) |
| HSL | hsl(10, 58%, 45%) |
| HSV | hsv(10, 73%, 72%) |
| CMYK | cmyk(0%, 61.2%, 73.2%, 28.2%) |
| CIE-LAB | lab(45.36, 44.09, 36.21) |
| CIE-LCH | lch(45.36, 57.05, 39.39°) |
| OKLab | oklab(54.57% 0.1258 0.0817) |
| OKLCH | oklch(54.57% 0.15 33) |
| XYZ | xyz(22.3384, 14.7986, 4.5853) |
| Luminance | 0.1480 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Reddish
#C44240
ΔE00 5.87
Dull Red
#BB3F3F
ΔE00 6.18
Brick
#A03623
ΔE00 6.42
Rusty Red
#AF2F0D
ΔE00 6.56
Rust
#B7410E
ΔE00 6.67
Brownish Red
#9E3623
ΔE00 6.75
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B74731 #31A1B7
analogous
#B7315E #B74731 #B78A31
triadic
#B74731 #31B747 #4731B7
tetradic
#B74731 #5EB731 #31A1B7 #8A31B7
square
#B74731 #5EB731 #31A1B7 #8A31B7
split-complementary
#B74731 #31B78A #315EB7
monochromatic
#562217 #873424 #B74731 #D16954 #DE9384
Accessibility & contrast
On white
5.30
#B74731 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.96
#B74731 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B74731
5.30:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B74731 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B74731 | 1.00 | 5.30 | 3.96 | 5.30 |
| #FFFFFF | 5.30 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.96 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.30 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#665C2E
Deuteranopia (green-blind)
#81752E
Tritanopia (blue-blind)
#C92D42
Achromatopsia (no color)
#6B6B6B
Design tokens & code
CSS
--color: #b74731; /* rgb */ color: rgb(183, 71, 49); /* oklch */ color: oklch(54.6% 0.150 33.0);
Tailwind
colors: {
custom: {
50: '#d47f6a',
500: '#b74731',
950: '#000000',
},
}SCSS
$custom: #b74731; $custom-light: #d47f6a; $custom-dark: #000000;
JSON
{
"hex": "#b74731",
"rgb": {
"r": 183,
"g": 71,
"b": 49
},
"hsl": {
"h": 9.851,
"s": 57.759,
"l": 45.49
},
"oklch": {
"l": 0.5457,
"c": 0.15002,
"h": 33
},
"luminance": 0.14796
}Semantic roles & 50–950 ramp
primary
#B74731
secondary
#7CBBC8
accent
#C8E147
background
#FEF7F6
surface
#FCEEEB
border
#D5C9C6
text
#160A06
muted
#847C7A