#B53339#B53339

#B53339 is a mid, vivid red. Relative luminance 0.125; OKLCH L 52.0% C 0.166 H 22.7°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#B53339
RGB	rgb(181, 51, 57)
HSL	hsl(357, 56%, 45%)
HSV	hsv(357, 72%, 71%)
CMYK	cmyk(0%, 71.8%, 68.5%, 29%)
CIE-LAB	lab(41.98, 52.25, 27.52)
CIE-LCH	lch(41.98, 59.05, 27.78°)
OKLab	oklab(52.01% 0.1533 0.0642)
OKLCH	oklch(52.01% 0.166 22.7)
XYZ	xyz(20.9807, 12.4899, 5.1761)
Luminance	0.1249 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53339 #33B5AF

analogous

#B5337A #B53339 #B56E33

triadic

#B53339 #39B533 #3339B5

tetradic

#B53339 #7AB533 #33B5AF #6E33B5

square

#B53339 #7AB533 #33B5AF #6E33B5

split-complementary

#B53339 #33B56E #337AB5

monochromatic

#56181B #85262A #B53339 #CF565B #DD868A

Accessibility & contrast

On white

6.00

#B53339 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#B53339 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53339

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53339	#FFFFFF	#000000	##FFFFFF
##B53339	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585138

Deuteranopia (green-blind)

#786D35

Tritanopia (blue-blind)

#C70236

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b53339;
/* rgb */ color: rgb(181, 51, 57);
/* oklch */ color: oklch(52.0% 0.166 22.7);

Tailwind

colors: {
  custom: {
    50: '#d3746f',
    500: '#b53339',
    950: '#000000',
  },
}

SCSS

$custom: #b53339;
$custom-light: #d3746f;
$custom-dark: #000000;

JSON

{
  "hex": "#b53339",
  "rgb": {
    "r": 181,
    "g": 51,
    "b": 57
  },
  "hsl": {
    "h": 357.231,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52008,
    "c": 0.16624,
    "h": 22.7
  },
  "luminance": 0.12487
}

Semantic roles & 50–950 ramp

primary

#B53339

secondary

#7DC6C3

accent

#DFD848

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B53339

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

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