#B53830#B53830

#B53830 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.4% C 0.163 H 27.8°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#B53830
RGB	rgb(181, 56, 48)
HSL	hsl(4, 58%, 45%)
HSV	hsv(4, 73%, 71%)
CMYK	cmyk(0%, 69.1%, 73.5%, 29%)
CIE-LAB	lab(42.56, 49.87, 33.54)
CIE-LCH	lch(42.56, 60.10, 33.92°)
OKLab	oklab(52.4% 0.1439 0.0758)
OKLCH	oklch(52.4% 0.163 27.8)
XYZ	xyz(21.0061, 12.8686, 4.1735)
Luminance	0.1287 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53830 #30ADB5

analogous

#B5306B #B53830 #B57B30

triadic

#B53830 #30B538 #3830B5

tetradic

#B53830 #6BB530 #30ADB5 #7B30B5

square

#B53830 #6BB530 #30ADB5 #7B30B5

split-complementary

#B53830 #30B57B #306BB5

monochromatic

#541A16 #852923 #B53830 #D15951 #DE8782

Accessibility & contrast

On white

5.88

#B53830 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B53830 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53830

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53830	#FFFFFF	#000000	##FFFFFF
##B53830	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C532E

Deuteranopia (green-blind)

#7B6E2C

Tritanopia (blue-blind)

#C70F37

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b53830;
/* rgb */ color: rgb(181, 56, 48);
/* oklch */ color: oklch(52.4% 0.163 27.8);

Tailwind

colors: {
  custom: {
    50: '#d37669',
    500: '#b53830',
    950: '#000000',
  },
}

SCSS

$custom: #b53830;
$custom-light: #d37669;
$custom-dark: #000000;

JSON

{
  "hex": "#b53830",
  "rgb": {
    "r": 181,
    "g": 56,
    "b": 48
  },
  "hsl": {
    "h": 3.609,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.52401,
    "c": 0.16265,
    "h": 27.8
  },
  "luminance": 0.12866
}

Semantic roles & 50–950 ramp

primary

#B53830

secondary

#7AC2C7

accent

#D8E146

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B53830

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

Preview Lab → · Contrast checker → · Palette generator →