#B53838#B53838

#B53838 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.162 H 24.6°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B53838
RGB	rgb(181, 56, 56)
HSL	hsl(0, 53%, 46%)
HSV	hsv(0, 69%, 71%)
CMYK	cmyk(0%, 69.1%, 69.1%, 29%)
CIE-LAB	lab(42.67, 50.26, 28.96)
CIE-LCH	lch(42.67, 58.01, 29.95°)
OKLab	oklab(52.52% 0.1468 0.0673)
OKLCH	oklch(52.52% 0.162 24.6)
XYZ	xyz(21.1863, 12.9407, 5.1228)
Luminance	0.1294 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53838 #38B5B5

analogous

#B53877 #B53838 #B57738

triadic

#B53838 #38B538 #3838B5

tetradic

#B53838 #77B538 #38B5B5 #7738B5

square

#B53838 #77B538 #38B5B5 #7738B5

split-complementary

#B53838 #38B577 #3877B5

monochromatic

#581B1B #862A2A #B53838 #CD5D5D #DB8C8C

Accessibility & contrast

On white

5.85

#B53838 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B53838 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53838

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53838	#FFFFFF	#000000	##FFFFFF
##B53838	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5437

Deuteranopia (green-blind)

#7A6F34

Tritanopia (blue-blind)

#C71339

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b53838;
/* rgb */ color: rgb(181, 56, 56);
/* oklch */ color: oklch(52.5% 0.162 24.6);

Tailwind

colors: {
  custom: {
    50: '#d3766e',
    500: '#b53838',
    950: '#000000',
  },
}

SCSS

$custom: #b53838;
$custom-light: #d3766e;
$custom-dark: #000000;

JSON

{
  "hex": "#b53838",
  "rgb": {
    "r": 181,
    "g": 56,
    "b": 56
  },
  "hsl": {
    "h": 0,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.52518,
    "c": 0.1615,
    "h": 24.6
  },
  "luminance": 0.12938
}

Semantic roles & 50–950 ramp

primary

#B53838

secondary

#83C6C6

accent

#DCDC4C

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B53838

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

Preview Lab → · Contrast checker → · Palette generator →