#C63B3A#C63B3A
#C63B3A is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.8% C 0.176 H 25.3°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).
Color values
| HEX | #C63B3A |
|---|---|
| RGB | rgb(198, 59, 58) |
| HSL | hsl(0, 55%, 50%) |
| HSV | hsv(0, 71%, 78%) |
| CMYK | cmyk(0%, 70.2%, 70.7%, 22.4%) |
| CIE-LAB | lab(46.24, 54.73, 32.77) |
| CIE-LCH | lch(46.24, 63.79, 30.92°) |
| OKLab | oklab(55.76% 0.1593 0.0752) |
| OKLCH | oklch(55.76% 0.176 25.3) |
| XYZ | xyz(25.6192, 15.4430, 5.6340) |
| Luminance | 0.1544 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Reddish
#C44240
ΔE00 1.37
Dull Red
#BB3F3F
ΔE00 2.46
Crimson
#DC143C
ΔE00 5.11
Cherry (survey)
#CF0234
ΔE00 5.17
Faded Red
#D3494E
ΔE00 5.38
Cardinal
#C41E3A
ΔE00 5.45
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#C63B3A #3AC5C6
analogous
#C63A7F #C63B3A #C6813A
triadic
#C63B3A #3AC63B #3B3AC6
tetradic
#C63B3A #7FC63A #3AC5C6 #813AC6
square
#C63B3A #7FC63A #3AC5C6 #813AC6
split-complementary
#C63B3A #3AC681 #3A7FC6
monochromatic
#681F1E #972C2C #C63B3A #D46A69 #E19999
Accessibility & contrast
On white
5.14
#C63B3A on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.09
#C63B3A on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #C63B3A
5.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##C63B3A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##C63B3A | 1.00 | 5.14 | 4.09 | 5.14 |
| #FFFFFF | 5.14 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.09 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.14 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#625A38
Deuteranopia (green-blind)
#857935
Tritanopia (blue-blind)
#DA093C
Achromatopsia (no color)
#6D6D6D
Design tokens & code
CSS
--color: #c63b3a; /* rgb */ color: rgb(198, 59, 58); /* oklch */ color: oklch(55.8% 0.176 25.3);
Tailwind
colors: {
custom: {
50: '#df7a70',
500: '#c63b3a',
950: '#000000',
},
}SCSS
$custom: #c63b3a; $custom-light: #df7a70; $custom-dark: #000000;
JSON
{
"hex": "#c63b3a",
"rgb": {
"r": 198,
"g": 59,
"b": 58
},
"hsl": {
"h": 0.429,
"s": 55.118,
"l": 50.196
},
"oklch": {
"l": 0.5576,
"c": 0.17613,
"h": 25.3
},
"luminance": 0.15439
}Semantic roles & 50–950 ramp
primary
#C63B3A
secondary
#8FCDCD
accent
#DDDE49
background
#FEF7F6
surface
#FDEEEC
border
#D5C9C7
text
#170A07
muted
#857C7A