#B53B30#B53B30

#B53B30 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.160 H 28.8°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B53B30
RGB	rgb(181, 59, 48)
HSL	hsl(5, 58%, 45%)
HSV	hsv(5, 73%, 71%)
CMYK	cmyk(0%, 67.4%, 73.5%, 29%)
CIE-LAB	lab(43.02, 48.64, 34.05)
CIE-LCH	lch(43.02, 59.37, 34.99°)
OKLab	oklab(52.74% 0.1401 0.0769)
OKLCH	oklch(52.74% 0.16 28.8)
XYZ	xyz(21.1558, 13.1682, 4.2235)
Luminance	0.1316 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53B30 #30AAB5

analogous

#B53068 #B53B30 #B57D30

triadic

#B53B30 #30B53B #3B30B5

tetradic

#B53B30 #68B530 #30AAB5 #7D30B5

square

#B53B30 #68B530 #30AAB5 #7D30B5

split-complementary

#B53B30 #30B57D #3068B5

monochromatic

#541B16 #852B23 #B53B30 #D15C51 #DE8982

Accessibility & contrast

On white

5.78

#B53B30 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B53B30 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53B30

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53B30	#FFFFFF	#000000	##FFFFFF
##B53B30	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D552E

Deuteranopia (green-blind)

#7C6F2C

Tritanopia (blue-blind)

#C71739

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b53b30;
/* rgb */ color: rgb(181, 59, 48);
/* oklch */ color: oklch(52.7% 0.160 28.8);

Tailwind

colors: {
  custom: {
    50: '#d37869',
    500: '#b53b30',
    950: '#000000',
  },
}

SCSS

$custom: #b53b30;
$custom-light: #d37869;
$custom-dark: #000000;

JSON

{
  "hex": "#b53b30",
  "rgb": {
    "r": 181,
    "g": 59,
    "b": 48
  },
  "hsl": {
    "h": 4.962,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.52739,
    "c": 0.15978,
    "h": 28.8
  },
  "luminance": 0.13165
}

Semantic roles & 50–950 ramp

primary

#B53B30

secondary

#7AC0C7

accent

#D4E146

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53B30

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →