#AC4337#AC4337
#AC4337 is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.4% C 0.140 H 29.2°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).
Color values
| HEX | #AC4337 |
|---|---|
| RGB | rgb(172, 67, 55) |
| HSL | hsl(6, 52%, 45%) |
| HSV | hsv(6, 68%, 67%) |
| CMYK | cmyk(0%, 61%, 68%, 32.5%) |
| CIE-LAB | lab(42.86, 42.26, 29.40) |
| CIE-LCH | lch(42.86, 51.48, 34.83°) |
| OKLab | oklab(52.35% 0.1225 0.0685) |
| OKLCH | oklch(52.35% 0.14 29.2) |
| XYZ | xyz(19.7120, 13.0634, 5.0972) |
| Luminance | 0.1306 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 4.12
Brick
#A03623
ΔE00 4.99
Brownish Red
#9E3623
ΔE00 5.21
Reddish
#C44240
ΔE00 5.29
Brown
#A52A2A
ΔE00 5.44
Firebrick
#B22222
ΔE00 5.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#AC4337 #37A0AC
analogous
#AC3766 #AC4337 #AC7E37
triadic
#AC4337 #37AC43 #4337AC
tetradic
#AC4337 #66AC37 #37A0AC #7E37AC
square
#AC4337 #66AC37 #37A0AC #7E37AC
split-complementary
#AC4337 #37AC7E #3766AC
monochromatic
#4F1F19 #7E3128 #AC4337 #C96357 #D88E85
Accessibility & contrast
On white
5.81
#AC4337 on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.61
#AC4337 on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #AC4337
5.81:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##AC4337 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##AC4337 | 1.00 | 5.81 | 3.61 | 5.81 |
| #FFFFFF | 5.81 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.61 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.81 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5F5735
Deuteranopia (green-blind)
#796E34
Tritanopia (blue-blind)
#BD2C41
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #ac4337; /* rgb */ color: rgb(172, 67, 55); /* oklch */ color: oklch(52.4% 0.140 29.2);
Tailwind
colors: {
custom: {
50: '#cb7b6e',
500: '#ac4337',
950: '#000000',
},
}SCSS
$custom: #ac4337; $custom-light: #cb7b6e; $custom-dark: #000000;
JSON
{
"hex": "#ac4337",
"rgb": {
"r": 172,
"g": 67,
"b": 55
},
"hsl": {
"h": 6.154,
"s": 51.542,
"l": 44.51
},
"oklch": {
"l": 0.52353,
"c": 0.14036,
"h": 29.2
},
"luminance": 0.13061
}Semantic roles & 50–950 ramp
primary
#AC4337
secondary
#7DBBC2
accent
#CCDB4D
background
#FDF7F6
surface
#FAEEEC
border
#D3C9C7
text
#150A07
muted
#837C7A