#B43F38#B43F38
#B43F38 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.2% C 0.153 H 27.0°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).
Color values
| HEX | #B43F38 |
|---|---|
| RGB | rgb(180, 63, 56) |
| HSL | hsl(3, 53%, 46%) |
| HSV | hsv(3, 69%, 71%) |
| CMYK | cmyk(0%, 65%, 68.9%, 29.4%) |
| CIE-LAB | lab(43.58, 46.99, 30.00) |
| CIE-LCH | lch(43.58, 55.75, 32.56°) |
| OKLab | oklab(53.16% 0.1366 0.0696) |
| OKLCH | oklch(53.16% 0.153 27) |
| XYZ | xyz(21.3159, 13.5468, 5.2330) |
| Luminance | 0.1354 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.39
Reddish
#C44240
ΔE00 3.69
Firebrick
#B22222
ΔE00 5.13
Brown
#A52A2A
ΔE00 5.44
Dusty Red
#B9484E
ΔE00 5.67
Cardinal
#C41E3A
ΔE00 6.14
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B43F38 #38ADB4
analogous
#B4386F #B43F38 #B47D38
triadic
#B43F38 #38B43F #3F38B4
tetradic
#B43F38 #6FB438 #38ADB4 #7D38B4
square
#B43F38 #6FB438 #38ADB4 #7D38B4
split-complementary
#B43F38 #38B47D #386FB4
monochromatic
#571E1B #852F29 #B43F38 #CD635D #DB908B
Accessibility & contrast
On white
5.66
#B43F38 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.71
#B43F38 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B43F38
5.66:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B43F38 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B43F38 | 1.00 | 5.66 | 3.71 | 5.66 |
| #FFFFFF | 5.66 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.71 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.66 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5F5736
Deuteranopia (green-blind)
#7C7035
Tritanopia (blue-blind)
#C6223E
Achromatopsia (no color)
#676767
Design tokens & code
CSS
--color: #b43f38; /* rgb */ color: rgb(180, 63, 56); /* oklch */ color: oklch(53.2% 0.153 27.0);
Tailwind
colors: {
custom: {
50: '#d27a6f',
500: '#b43f38',
950: '#000000',
},
}SCSS
$custom: #b43f38; $custom-light: #d27a6f; $custom-dark: #000000;
JSON
{
"hex": "#b43f38",
"rgb": {
"r": 180,
"g": 63,
"b": 56
},
"hsl": {
"h": 3.387,
"s": 52.542,
"l": 46.275
},
"oklch": {
"l": 0.5316,
"c": 0.15333,
"h": 27
},
"luminance": 0.13544
}Semantic roles & 50–950 ramp
primary
#B43F38
secondary
#82C2C5
accent
#D4DC4C
background
#FDF7F6
surface
#FBEEEC
border
#D4C9C7
text
#150A07
muted
#837C7A