#B55D2B#B55D2B
#B55D2B is a mid, vivid orange. Relative luminance 0.178; OKLCH L 57.5% C 0.130 H 47.6°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).
Color values
| HEX | #B55D2B |
|---|---|
| RGB | rgb(181, 93, 43) |
| HSL | hsl(22, 62%, 44%) |
| HSV | hsv(22, 76%, 71%) |
| CMYK | cmyk(0%, 48.6%, 76.2%, 29%) |
| CIE-LAB | lab(49.29, 31.99, 43.45) |
| CIE-LCH | lch(49.29, 53.96, 53.63°) |
| OKLab | oklab(57.48% 0.0879 0.0961) |
| OKLCH | oklch(57.48% 0.13 47.6) |
| XYZ | xyz(23.4086, 17.8297, 4.4938) |
| Luminance | 0.1783 (WCAG relative) |
| Temperature | warm |
| Family | orange |
Closest named colors
Copper (survey)
#B66325
ΔE00 3.55
Sienna (survey)
#A9561E
ΔE00 3.77
Rust Orange
#C45508
ΔE00 4.47
Burnt Siena
#B75203
ΔE00 4.52
Burnt Sienna
#B04E0F
ΔE00 4.70
Burnt Orange
#C04E01
ΔE00 4.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B55D2B #2B83B5
analogous
#B52B3E #B55D2B #B5A22B
triadic
#B55D2B #2BB55D #5D2BB5
tetradic
#B55D2B #3EB52B #2B83B5 #A22BB5
square
#B55D2B #3EB52B #2B83B5 #A22BB5
split-complementary
#B55D2B #2BB5A2 #2B3EB5
monochromatic
#522A14 #84441F #B55D2B #D47C49 #E09F7B
Accessibility & contrast
On white
4.60
#B55D2B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.57
#B55D2B on #000000
AA ✓AA large ✓AAA ✗
Best text color
#FFFFFF on #B55D2B
4.60:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B55D2B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B55D2B | 1.00 | 4.60 | 4.57 | 4.60 |
| #FFFFFF | 4.60 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.57 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.60 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#766925
Deuteranopia (green-blind)
#8B7D29
Tritanopia (blue-blind)
#C64A52
Achromatopsia (no color)
#757575
Design tokens & code
CSS
--color: #b55d2b; /* rgb */ color: rgb(181, 93, 43); /* oklch */ color: oklch(57.5% 0.130 47.6);
Tailwind
colors: {
custom: {
50: '#d28c67',
500: '#b55d2b',
950: '#000000',
},
}SCSS
$custom: #b55d2b; $custom-light: #d28c67; $custom-dark: #000000;
JSON
{
"hex": "#b55d2b",
"rgb": {
"r": 181,
"g": 93,
"b": 43
},
"hsl": {
"h": 21.739,
"s": 61.607,
"l": 43.922
},
"oklch": {
"l": 0.57477,
"c": 0.13017,
"h": 47.6
},
"luminance": 0.17827
}Semantic roles & 50–950 ramp
primary
#B55D2B
secondary
#74A9C8
accent
#AAE543
background
#FDF8F6
surface
#FBF0EB
border
#D4CBC6
text
#150C06
muted
#837D7A