#B15B28#B15B28
#B15B28 is a mid, vivid orange. Relative luminance 0.170; OKLCH L 56.5% C 0.129 H 48.3°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).
Color values
| HEX | #B15B28 |
|---|---|
| RGB | rgb(177, 91, 40) |
| HSL | hsl(22, 63%, 43%) |
| HSV | hsv(22, 77%, 69%) |
| CMYK | cmyk(0%, 48.6%, 77.4%, 30.6%) |
| CIE-LAB | lab(48.24, 31.29, 43.65) |
| CIE-LCH | lch(48.24, 53.71, 54.37°) |
| OKLab | oklab(56.55% 0.0856 0.096) |
| OKLCH | oklch(56.55% 0.129 48.3) |
| XYZ | xyz(22.2576, 16.9851, 4.1134) |
| Luminance | 0.1698 (WCAG relative) |
| Temperature | warm |
| Family | orange |
Closest named colors
Sienna (survey)
#A9561E
ΔE00 2.64
Copper (survey)
#B66325
ΔE00 3.74
Burnt Sienna
#B04E0F
ΔE00 3.89
Burnt Siena
#B75203
ΔE00 4.02
Cinnamon
#AC4F06
ΔE00 4.54
Rust Orange
#C45508
ΔE00 4.75
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B15B28 #287EB1
analogous
#B12839 #B15B28 #B1A028
triadic
#B15B28 #28B15B #5B28B1
tetradic
#B15B28 #39B128 #287EB1 #A028B1
square
#B15B28 #39B128 #287EB1 #A028B1
split-complementary
#B15B28 #28B1A0 #2839B1
monochromatic
#4D2811 #7F411D #B15B28 #D47842 #E09C74
Accessibility & contrast
On white
4.78
#B15B28 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.40
#B15B28 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B15B28
4.78:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B15B28 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B15B28 | 1.00 | 4.78 | 4.40 | 4.78 |
| #FFFFFF | 4.78 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.40 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.78 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#736721
Deuteranopia (green-blind)
#887A27
Tritanopia (blue-blind)
#C24950
Achromatopsia (no color)
#727272
Design tokens & code
CSS
--color: #b15b28; /* rgb */ color: rgb(177, 91, 40); /* oklch */ color: oklch(56.5% 0.129 48.3);
Tailwind
colors: {
custom: {
50: '#cf8b65',
500: '#b15b28',
950: '#000000',
},
}SCSS
$custom: #b15b28; $custom-light: #cf8b65; $custom-dark: #000000;
JSON
{
"hex": "#b15b28",
"rgb": {
"r": 177,
"g": 91,
"b": 40
},
"hsl": {
"h": 22.336,
"s": 63.134,
"l": 42.549
},
"oklch": {
"l": 0.56547,
"c": 0.12858,
"h": 48.3
},
"luminance": 0.16982
}Semantic roles & 50–950 ramp
primary
#B15B28
secondary
#6EA6C7
accent
#A9E642
background
#FDF8F6
surface
#FBF0EB
border
#D4CBC6
text
#150C06
muted
#837D7A