#B3363B#B3363B
#B3363B is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.161 H 22.6°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #B3363B |
|---|---|
| RGB | rgb(179, 54, 59) |
| HSL | hsl(358, 54%, 46%) |
| HSV | hsv(358, 70%, 70%) |
| CMYK | cmyk(0%, 69.8%, 67%, 29.8%) |
| CIE-LAB | lab(42.06, 50.56, 26.32) |
| CIE-LCH | lch(42.06, 57.00, 27.50°) |
| OKLab | oklab(52.01% 0.1487 0.0619) |
| OKLCH | oklch(52.01% 0.161 22.6) |
| XYZ | xyz(20.7012, 12.5408, 5.4674) |
| Luminance | 0.1254 (WCAG relative) |
| Temperature | warm |
| Family | red |
Closest named colors
Dull Red
#BB3F3F
ΔE00 2.81
Cardinal
#C41E3A
ΔE00 3.71
Lipstick Red
#C0022F
ΔE00 4.41
Brown
#A52A2A
ΔE00 4.66
Dusty Red
#B9484E
ΔE00 4.83
Reddish
#C44240
ΔE00 4.96
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#B3363B #36B3AE
analogous
#B33679 #B3363B #B36F36
triadic
#B3363B #3BB336 #363BB3
tetradic
#B3363B #79B336 #36B3AE #6F36B3
square
#B3363B #79B336 #36B3AE #6F36B3
split-complementary
#B3363B #36B36F #3679B3
monochromatic
#551A1C #84282C #B3363B #CD595E #DB888C
Accessibility & contrast
On white
5.99
#B3363B on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.51
#B3363B on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #B3363B
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##B3363B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##B3363B | 1.00 | 5.99 | 3.51 | 5.99 |
| #FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.51 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#58523A
Deuteranopia (green-blind)
#786D37
Tritanopia (blue-blind)
#C51139
Achromatopsia (no color)
#636363
Design tokens & code
CSS
--color: #b3363b; /* rgb */ color: rgb(179, 54, 59); /* oklch */ color: oklch(52.0% 0.161 22.6);
Tailwind
colors: {
custom: {
50: '#d17571',
500: '#b3363b',
950: '#000000',
},
}SCSS
$custom: #b3363b; $custom-light: #d17571; $custom-dark: #000000;
JSON
{
"hex": "#b3363b",
"rgb": {
"r": 179,
"g": 54,
"b": 59
},
"hsl": {
"h": 357.6,
"s": 53.648,
"l": 45.686
},
"oklch": {
"l": 0.52009,
"c": 0.16103,
"h": 22.6
},
"luminance": 0.12538
}Semantic roles & 50–950 ramp
primary
#B3363B
secondary
#80C5C2
accent
#DDD74B
background
#FDF7F6
surface
#FBEDEC
border
#D4C8C7
text
#150907
muted
#837B7A