#B5333A#B5333A
#B5333A is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.166 H 22.3°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).
Color values
| HEX | #B5333A |
|---|---|
| RGB | rgb(181, 51, 58) |
| HSL | hsl(357, 56%, 45%) |
| HSV | hsv(357, 72%, 71%) |
| CMYK | cmyk(0%, 71.8%, 68%, 29%) |
| CIE-LAB | lab(42.00, 52.30, 26.94) |
| CIE-LCH | lch(42.00, 58.83, 27.25°) |
| OKLab | oklab(52.03% 0.1537 0.0631) |
| OKLCH | oklch(52.03% 0.166 22.3) |
| XYZ | xyz(21.0059, 12.5000, 5.3088) |
| Luminance | 0.1250 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.96
Cardinal
#C41E3A
ΔE00 3.23
Lipstick Red
#C0022F
ΔE00 3.90
Brown
#A52A2A
ΔE00 4.70
Cherry (survey)
#CF0234
ΔE00 4.79
Reddish
#C44240
ΔE00 5.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B5333A #33B5AE
analogous
#B5337B #B5333A #B56D33
triadic
#B5333A #3AB533 #333AB5
tetradic
#B5333A #7BB533 #33B5AE #6D33B5
square
#B5333A #7BB533 #33B5AE #6D33B5
split-complementary
#B5333A #33B56D #337BB5
monochromatic
#56181B #85262B #B5333A #CF565C #DD868A
Accessibility & contrast
On white
6.00
#B5333A on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.50
#B5333A on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B5333A
6.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B5333A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B5333A | 1.00 | 6.00 | 3.50 | 6.00 |
| #FFFFFF | 6.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#585139
Deuteranopia (green-blind)
#786D36
Tritanopia (blue-blind)
#C70337
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b5333a; /* rgb */ color: rgb(181, 51, 58); /* oklch */ color: oklch(52.0% 0.166 22.3);
Tailwind
colors: {
custom: {
50: '#d37470',
500: '#b5333a',
950: '#000000',
},
}SCSS
$custom: #b5333a; $custom-light: #d37470; $custom-dark: #000000;
JSON
{
"hex": "#b5333a",
"rgb": {
"r": 181,
"g": 51,
"b": 58
},
"hsl": {
"h": 356.769,
"s": 56.034,
"l": 45.49
},
"oklch": {
"l": 0.52025,
"c": 0.16615,
"h": 22.3
},
"luminance": 0.12497
}Semantic roles & 50–950 ramp
primary
#B5333A
secondary
#7DC6C2
accent
#DFD748
background
#FEF7F6
surface
#FCEDEC
border
#D5C8C7
text
#160907
muted
#847B7A