#C55A3B#C55A3B
#C55A3B is a mid, vivid red. Relative luminance 0.195; OKLCH L 59.5% C 0.145 H 36.9°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).
Color values
| HEX | #C55A3B |
|---|---|
| RGB | rgb(197, 90, 59) |
| HSL | hsl(13, 54%, 50%) |
| HSV | hsv(13, 70%, 77%) |
| CMYK | cmyk(0%, 54.3%, 70.1%, 22.7%) |
| CIE-LAB | lab(51.27, 40.64, 38.00) |
| CIE-LCH | lch(51.27, 55.64, 43.07°) |
| OKLab | oklab(59.52% 0.1156 0.0868) |
| OKLCH | oklch(59.52% 0.145 36.9) |
| XYZ | xyz(27.4742, 19.5019, 6.4543) |
| Luminance | 0.1950 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Terracotta (survey)
#CA6641
ΔE00 3.81
Terra Cotta
#C9643B
ΔE00 3.93
Terracota
#CB6843
ΔE00 4.35
Clay
#B66A50
ΔE00 5.57
Adobe
#BD6C48
ΔE00 5.75
Terracotta
#C96F4A
ΔE00 6.16
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#C55A3B #3BA6C5
analogous
#C53B61 #C55A3B #C59F3B
triadic
#C55A3B #3BC55A #5A3BC5
tetradic
#C55A3B #61C53B #3BA6C5 #9F3BC5
square
#C55A3B #61C53B #3BA6C5 #9F3BC5
split-complementary
#C55A3B #3BC59F #3B61C5
monochromatic
#672F1F #96442C #C55A3B #D3826A #E1AA99
Accessibility & contrast
On white
4.29
#C55A3B on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.90
#C55A3B on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #C55A3B
4.90:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##C55A3B | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##C55A3B | 1.00 | 4.29 | 4.90 | 4.90 |
| #FFFFFF | 4.29 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.90 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.90 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#776C38
Deuteranopia (green-blind)
#918338
Tritanopia (blue-blind)
#D84453
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #c55a3b; /* rgb */ color: rgb(197, 90, 59); /* oklch */ color: oklch(59.5% 0.145 36.9);
Tailwind
colors: {
custom: {
50: '#dd8b72',
500: '#c55a3b',
950: '#000000',
},
}SCSS
$custom: #c55a3b; $custom-light: #dd8b72; $custom-dark: #000000;
JSON
{
"hex": "#c55a3b",
"rgb": {
"r": 197,
"g": 90,
"b": 59
},
"hsl": {
"h": 13.478,
"s": 54.331,
"l": 50.196
},
"oklch": {
"l": 0.59525,
"c": 0.14458,
"h": 36.9
},
"luminance": 0.19498
}Semantic roles & 50–950 ramp
primary
#C55A3B
secondary
#8FBFCD
accent
#BDDE4A
background
#FEF8F6
surface
#FDF0EC
border
#D5CBC7
text
#160C08
muted
#847D7B