#B83740#B83740
#B83740 is a mid, vivid red. Relative luminance 0.133; OKLCH L 53.1% C 0.165 H 21.0°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).
Color values
| HEX | #B83740 |
|---|---|
| RGB | rgb(184, 55, 64) |
| HSL | hsl(356, 54%, 47%) |
| HSV | hsv(356, 70%, 72%) |
| CMYK | cmyk(0%, 70.1%, 65.2%, 27.8%) |
| CIE-LAB | lab(43.21, 52.08, 24.91) |
| CIE-LCH | lch(43.21, 57.73, 25.56°) |
| OKLab | oklab(53.06% 0.1539 0.0592) |
| OKLCH | oklch(53.06% 0.165 21) |
| XYZ | xyz(22.0611, 13.2961, 6.2542) |
| Luminance | 0.1329 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.63
Cardinal
#C41E3A
ΔE00 3.06
Dusty Red
#B9484E
ΔE00 3.73
Reddish
#C44240
ΔE00 4.55
Lipstick Red
#C0022F
ΔE00 4.66
Cherry (survey)
#CF0234
ΔE00 4.81
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B83740 #37B8AF
analogous
#B83781 #B83740 #B86F37
triadic
#B83740 #40B837 #3740B8
tetradic
#B83740 #81B837 #37B8AF #6F37B8
square
#B83740 #81B837 #37B8AF #6F37B8
split-complementary
#B83740 #37B86F #3781B8
monochromatic
#5A1B1F #892930 #B83740 #CF5D65 #DD8D92
Accessibility & contrast
On white
5.74
#B83740 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.66
#B83740 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B83740
5.74:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B83740 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B83740 | 1.00 | 5.74 | 3.66 | 5.74 |
| #FFFFFF | 5.74 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.66 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.74 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5A553F
Deuteranopia (green-blind)
#7B703C
Tritanopia (blue-blind)
#CA113B
Achromatopsia (no color)
#666666
Design tokens & code
CSS
--color: #b83740; /* rgb */ color: rgb(184, 55, 64); /* oklch */ color: oklch(53.1% 0.165 21.0);
Tailwind
colors: {
custom: {
50: '#d57674',
500: '#b83740',
950: '#000000',
},
}SCSS
$custom: #b83740; $custom-light: #d57674; $custom-dark: #000000;
JSON
{
"hex": "#b83740",
"rgb": {
"r": 184,
"g": 55,
"b": 64
},
"hsl": {
"h": 355.814,
"s": 53.975,
"l": 46.863
},
"oklch": {
"l": 0.53057,
"c": 0.16487,
"h": 21
},
"luminance": 0.13293
}Semantic roles & 50–950 ramp
primary
#B83740
secondary
#84C7C3
accent
#DDD34A
background
#FEF7F7
surface
#FCEEED
border
#D5C9C8
text
#160908
muted
#847B7B