#B53729#B53729

#B53729 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.165 H 29.9°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#B53729
RGB	rgb(181, 55, 41)
HSL	hsl(6, 63%, 44%)
HSV	hsv(6, 77%, 71%)
CMYK	cmyk(0%, 69.6%, 77.3%, 29%)
CIE-LAB	lab(42.34, 49.97, 37.26)
CIE-LCH	lch(42.34, 62.34, 36.71°)
OKLab	oklab(52.21% 0.1428 0.0822)
OKLCH	oklch(52.21% 0.165 29.9)
XYZ	xyz(20.8249, 12.7194, 3.4559)
Luminance	0.1272 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B53729 #29A7B5

analogous

#B52961 #B53729 #B57D29

triadic

#B53729 #29B537 #3729B5

tetradic

#B53729 #61B529 #29A7B5 #7D29B5

square

#B53729 #61B529 #29A7B5 #7D29B5

split-complementary

#B53729 #29B57D #2961B5

monochromatic

#511912 #83281E #B53729 #D55446 #E08278

Accessibility & contrast

On white

5.93

#B53729 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B53729 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B53729

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B53729	#FFFFFF	#000000	##FFFFFF
##B53729	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5226

Deuteranopia (green-blind)

#7B6E24

Tritanopia (blue-blind)

#C70935

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b53729;
/* rgb */ color: rgb(181, 55, 41);
/* oklch */ color: oklch(52.2% 0.165 29.9);

Tailwind

colors: {
  custom: {
    50: '#d47664',
    500: '#b53729',
    950: '#000000',
  },
}

SCSS

$custom: #b53729;
$custom-light: #d47664;
$custom-dark: #000000;

JSON

{
  "hex": "#b53729",
  "rgb": {
    "r": 181,
    "g": 55,
    "b": 41
  },
  "hsl": {
    "h": 6,
    "s": 63.063,
    "l": 43.529
  },
  "oklch": {
    "l": 0.52205,
    "c": 0.16474,
    "h": 29.9
  },
  "luminance": 0.12716
}

Semantic roles & 50–950 ramp

primary

#B53729

secondary

#72C0C8

accent

#D6E642

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B53729

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

Preview Lab → · Contrast checker → · Palette generator →