#A4333B#A4333B
#A4333B is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.1% C 0.148 H 20.6°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).
Color values
| HEX | #A4333B |
|---|---|
| RGB | rgb(164, 51, 59) |
| HSL | hsl(356, 53%, 42%) |
| HSV | hsv(356, 69%, 64%) |
| CMYK | cmyk(0%, 68.9%, 64%, 35.7%) |
| CIE-LAB | lab(38.86, 46.81, 21.71) |
| CIE-LCH | lch(38.86, 51.60, 24.88°) |
| OKLab | oklab(49.11% 0.1386 0.052) |
| OKLCH | oklch(49.11% 0.148 20.6) |
| XYZ | xyz(17.2848, 10.5784, 5.2685) |
| Luminance | 0.1058 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Brown
#A52A2A
ΔE00 4.42
Rouge
#AB1239
ΔE00 4.63
Rose Red
#BE013C
ΔE00 5.74
Lipstick Red
#C0022F
ΔE00 5.81
Cardinal
#C41E3A
ΔE00 5.83
Dull Red
#BB3F3F
ΔE00 6.17
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#A4333B #33A49C
analogous
#A43374 #A4333B #A46333
triadic
#A4333B #3BA433 #333BA4
tetradic
#A4333B #74A433 #33A49C #6333A4
square
#A4333B #74A433 #33A49C #6333A4
split-complementary
#A4333B #33A463 #3374A4
monochromatic
#471619 #75242A #A4333B #C84D55 #D67B82
Accessibility & contrast
On white
6.74
#A4333B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.12
#A4333B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #A4333B
6.74:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##A4333B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##A4333B | 1.00 | 6.74 | 3.12 | 6.74 |
| #FFFFFF | 6.74 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.12 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 6.74 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#514C3A
Deuteranopia (green-blind)
#6E6438
Tritanopia (blue-blind)
#B41637
Achromatopsia (no color)
#5B5B5B
Design tokens & code
CSS
--color: #a4333b; /* rgb */ color: rgb(164, 51, 59); /* oklch */ color: oklch(49.1% 0.148 20.6);
Tailwind
colors: {
custom: {
50: '#c67270',
500: '#a4333b',
950: '#000000',
},
}SCSS
$custom: #a4333b; $custom-light: #c67270; $custom-dark: #000000;
JSON
{
"hex": "#a4333b",
"rgb": {
"r": 164,
"g": 51,
"b": 59
},
"hsl": {
"h": 355.752,
"s": 52.558,
"l": 42.157
},
"oklch": {
"l": 0.49107,
"c": 0.14809,
"h": 20.6
},
"luminance": 0.10576
}Semantic roles & 50–950 ramp
primary
#A4333B
secondary
#74BFB9
accent
#DCD24C
background
#FDF7F6
surface
#FAEDEC
border
#D3C8C7
text
#140807
muted
#837B7A