#CB3F3A#CB3F3A
#CB3F3A is a mid, vivid red. Relative luminance 0.166; OKLCH L 57.0% C 0.178 H 26.5°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).
Color values
| HEX | #CB3F3A |
|---|---|
| RGB | rgb(203, 63, 58) |
| HSL | hsl(2, 58%, 51%) |
| HSV | hsv(2, 71%, 80%) |
| CMYK | cmyk(0%, 69%, 71.4%, 20.4%) |
| CIE-LAB | lab(47.70, 54.81, 34.72) |
| CIE-LCH | lch(47.70, 64.88, 32.35°) |
| OKLab | oklab(57.02% 0.1589 0.0792) |
| OKLCH | oklch(57.02% 0.178 26.5) |
| XYZ | xyz(27.1728, 16.5610, 5.7680) |
| Luminance | 0.1656 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Reddish
#C44240
ΔE00 2.02
Dull Red
#BB3F3F
ΔE00 3.94
Dark Coral
#CF524E
ΔE00 4.81
Faded Red
#D3494E
ΔE00 4.90
Crimson
#DC143C
ΔE00 5.67
Pale Red
#D9544D
ΔE00 6.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#CB3F3A #3AC6CB
analogous
#CB3A7D #CB3F3A #CB873A
triadic
#CB3F3A #3ACB3F #3F3ACB
tetradic
#CB3F3A #7DCB3A #3AC6CB #873ACB
square
#CB3F3A #7DCB3A #3AC6CB #873ACB
split-complementary
#CB3F3A #3ACB87 #3A7DCB
monochromatic
#6E201D #9E2E2A #CB3F3A #D86E6A #E59D9B
Accessibility & contrast
On white
4.87
#CB3F3A on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.31
#CB3F3A on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #CB3F3A
4.87:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##CB3F3A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##CB3F3A | 1.00 | 4.87 | 4.31 | 4.87 |
| #FFFFFF | 4.87 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.31 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 4.87 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#675E38
Deuteranopia (green-blind)
#8A7C35
Tritanopia (blue-blind)
#DF113F
Achromatopsia (no color)
#717171
Design tokens & code
CSS
--color: #cb3f3a; /* rgb */ color: rgb(203, 63, 58); /* oklch */ color: oklch(57.0% 0.178 26.5);
Tailwind
colors: {
custom: {
50: '#e37c70',
500: '#cb3f3a',
950: '#000000',
},
}SCSS
$custom: #cb3f3a; $custom-light: #e37c70; $custom-dark: #000000;
JSON
{
"hex": "#cb3f3a",
"rgb": {
"r": 203,
"g": 63,
"b": 58
},
"hsl": {
"h": 2.069,
"s": 58.233,
"l": 51.176
},
"oklch": {
"l": 0.57023,
"c": 0.17755,
"h": 26.5
},
"luminance": 0.16557
}Semantic roles & 50–950 ramp
primary
#CB3F3A
secondary
#90CED0
accent
#DCE146
background
#FFF7F6
surface
#FEEEEC
border
#D6C9C7
text
#170A07
muted
#857C7A