#A33830#A33830
#A33830 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.3% C 0.143 H 27.8°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).
Color values
| HEX | #A33830 |
|---|---|
| RGB | rgb(163, 56, 48) |
| HSL | hsl(4, 55%, 41%) |
| HSV | hsv(4, 71%, 64%) |
| CMYK | cmyk(0%, 65.6%, 70.6%, 36.1%) |
| CIE-LAB | lab(39.29, 43.67, 28.91) |
| CIE-LCH | lch(39.29, 52.38, 33.51°) |
| OKLab | oklab(49.34% 0.1266 0.0666) |
| OKLCH | oklch(49.34% 0.143 27.8) |
| XYZ | xyz(17.0537, 10.8307, 3.9883) |
| Luminance | 0.1083 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Brown
#A52A2A
ΔE00 2.55
Brick
#A03623
ΔE00 3.64
Brownish Red
#9E3623
ΔE00 3.70
Firebrick
#B22222
ΔE00 4.08
Dull Red
#BB3F3F
ΔE00 5.84
Scarlet
#BE0119
ΔE00 6.52
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#A33830 #309BA3
analogous
#A33062 #A33830 #A37230
triadic
#A33830 #30A338 #3830A3
tetradic
#A33830 #62A330 #309BA3 #7230A3
square
#A33830 #62A330 #309BA3 #7230A3
split-complementary
#A33830 #30A372 #3062A3
monochromatic
#441814 #742822 #A33830 #C95047 #D77D77
Accessibility & contrast
On white
6.63
#A33830 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.17
#A33830 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #A33830
6.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##A33830 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##A33830 | 1.00 | 6.63 | 3.17 | 6.63 |
| #FFFFFF | 6.63 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.17 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.63 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#554E2E
Deuteranopia (green-blind)
#70652D
Tritanopia (blue-blind)
#B31D37
Achromatopsia (no color)
#5D5D5D
Design tokens & code
CSS
--color: #a33830; /* rgb */ color: rgb(163, 56, 48); /* oklch */ color: oklch(49.3% 0.143 27.8);
Tailwind
colors: {
custom: {
50: '#c57468',
500: '#a33830',
950: '#000000',
},
}SCSS
$custom: #a33830; $custom-light: #c57468; $custom-dark: #000000;
JSON
{
"hex": "#a33830",
"rgb": {
"r": 163,
"g": 56,
"b": 48
},
"hsl": {
"h": 4.174,
"s": 54.502,
"l": 41.373
},
"oklch": {
"l": 0.4934,
"c": 0.14307,
"h": 27.8
},
"luminance": 0.10828
}Semantic roles & 50–950 ramp
primary
#A33830
secondary
#70B9BF
accent
#D4DE4A
background
#FDF7F6
surface
#FAEDEB
border
#D3C8C6
text
#140906
muted
#837B7A