#B4552B#B4552B
#B4552B is a mid, vivid orange. Relative luminance 0.164; OKLCH L 56.1% C 0.135 H 42.8°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).
Color values
| HEX | #B4552B |
|---|---|
| RGB | rgb(180, 85, 43) |
| HSL | hsl(18, 61%, 44%) |
| HSV | hsv(18, 76%, 71%) |
| CMYK | cmyk(0%, 52.8%, 76.1%, 29.4%) |
| CIE-LAB | lab(47.47, 35.79, 41.52) |
| CIE-LCH | lch(47.47, 54.82, 49.24°) |
| OKLab | oklab(56.06% 0.0995 0.092) |
| OKLCH | oklch(56.06% 0.135 42.8) |
| XYZ | xyz(22.5091, 16.3775, 4.2609) |
| Luminance | 0.1638 (WCAG relative) |
| Temperature | warm |
| Family | orange |
Closest named colors
Sienna
#A0522D
ΔE00 4.46
Burnt Sienna
#B04E0F
ΔE00 4.47
Brick Orange
#C14A09
ΔE00 4.49
Sienna (survey)
#A9561E
ΔE00 4.74
Rust
#B7410E
ΔE00 4.95
Burnt Orange
#C04E01
ΔE00 5.24
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B4552B #2B8AB4
analogous
#B42B45 #B4552B #B4992B
triadic
#B4552B #2BB455 #552BB4
tetradic
#B4552B #45B42B #2B8AB4 #992BB4
square
#B4552B #45B42B #2B8AB4 #992BB4
split-complementary
#B4552B #2BB499 #2B45B4
monochromatic
#512613 #833E1F #B4552B #D37349 #DF997A
Accessibility & contrast
On white
4.91
#B4552B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.27
#B4552B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B4552B
4.91:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B4552B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B4552B | 1.00 | 4.91 | 4.27 | 4.91 |
| #FFFFFF | 4.91 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.27 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.91 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6F6326
Deuteranopia (green-blind)
#867929
Tritanopia (blue-blind)
#C6414C
Achromatopsia (no color)
#717171
Design tokens & code
CSS
--color: #b4552b; /* rgb */ color: rgb(180, 85, 43); /* oklch */ color: oklch(56.1% 0.135 42.8);
Tailwind
colors: {
custom: {
50: '#d18767',
500: '#b4552b',
950: '#000000',
},
}SCSS
$custom: #b4552b; $custom-light: #d18767; $custom-dark: #000000;
JSON
{
"hex": "#b4552b",
"rgb": {
"r": 180,
"g": 85,
"b": 43
},
"hsl": {
"h": 18.394,
"s": 61.435,
"l": 43.725
},
"oklch": {
"l": 0.56055,
"c": 0.13546,
"h": 42.8
},
"luminance": 0.16375
}Semantic roles & 50–950 ramp
primary
#B4552B
secondary
#73AEC7
accent
#B3E543
background
#FDF8F6
surface
#FBF0EB
border
#D4CBC6
text
#150B06
muted
#837C7A