#B43F23#B43F23
#B43F23 is a mid, vivid red. Relative luminance 0.134; OKLCH L 52.9% C 0.157 H 34.6°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).
Color values
| HEX | #B43F23 |
|---|---|
| RGB | rgb(180, 63, 35) |
| HSL | hsl(12, 67%, 42%) |
| HSV | hsv(12, 81%, 71%) |
| CMYK | cmyk(0%, 65%, 80.6%, 29.4%) |
| CIE-LAB | lab(43.33, 46.07, 41.41) |
| CIE-LCH | lch(43.33, 61.95, 41.96°) |
| OKLab | oklab(52.9% 0.1296 0.0895) |
| OKLCH | oklch(52.9% 0.157 34.6) |
| XYZ | xyz(20.9056, 13.3827, 3.0721) |
| Luminance | 0.1338 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Rusty Red
#AF2F0D
ΔE00 3.81
Rust
#B7410E
ΔE00 4.62
Brick
#A03623
ΔE00 5.13
Rust (survey)
#A83C09
ΔE00 5.47
Brownish Red
#9E3623
ΔE00 5.48
Rust Red
#AA2704
ΔE00 5.51
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B43F23 #2398B4
analogous
#B42350 #B43F23 #B48723
triadic
#B43F23 #23B43F #3F23B4
tetradic
#B43F23 #50B423 #2398B4 #8723B4
square
#B43F23 #50B423 #2398B4 #8723B4
split-complementary
#B43F23 #23B487 #2350B4
monochromatic
#4E1B0F #812D19 #B43F23 #D95A3B #E3856E
Accessibility & contrast
On white
5.71
#B43F23 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.68
#B43F23 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B43F23
5.71:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B43F23 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B43F23 | 1.00 | 5.71 | 3.68 | 5.71 |
| #FFFFFF | 5.71 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.68 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.71 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#61561F
Deuteranopia (green-blind)
#7D701E
Tritanopia (blue-blind)
#C61E3A
Achromatopsia (no color)
#666666
Design tokens & code
CSS
--color: #b43f23; /* rgb */ color: rgb(180, 63, 35); /* oklch */ color: oklch(52.9% 0.157 34.6);
Tailwind
colors: {
custom: {
50: '#d37a60',
500: '#b43f23',
950: '#000000',
},
}SCSS
$custom: #b43f23; $custom-light: #d37a60; $custom-dark: #000000;
JSON
{
"hex": "#b43f23",
"rgb": {
"r": 180,
"g": 63,
"b": 35
},
"hsl": {
"h": 11.586,
"s": 67.442,
"l": 42.157
},
"oklch": {
"l": 0.52902,
"c": 0.15749,
"h": 34.6
},
"luminance": 0.1338
}Semantic roles & 50–950 ramp
primary
#B43F23
secondary
#69B7C9
accent
#C9EA3D
background
#FEF7F5
surface
#FCEEE9
border
#D5C9C5
text
#160905
muted
#847B79