#B34037#B34037

#B34037 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.151 H 27.8°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#B34037
RGB	rgb(179, 64, 55)
HSL	hsl(4, 53%, 46%)
HSV	hsv(4, 69%, 70%)
CMYK	cmyk(0%, 64.2%, 69.3%, 29.8%)
CIE-LAB	lab(43.55, 46.14, 30.52)
CIE-LCH	lch(43.55, 55.32, 33.48°)
OKLab	oklab(53.1% 0.1339 0.0706)
OKLCH	oklch(53.1% 0.151 27.8)
XYZ	xyz(21.1156, 13.5293, 5.1132)
Luminance	0.1353 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B34037 #37AAB3

analogous

#B3376C #B34037 #B37E37

triadic

#B34037 #37B340 #4037B3

tetradic

#B34037 #6CB337 #37AAB3 #7E37B3

square

#B34037 #6CB337 #37AAB3 #7E37B3

split-complementary

#B34037 #37B37E #376CB3

monochromatic

#551F1A #842F29 #B34037 #CD635B #DB8F8A

Accessibility & contrast

On white

5.67

#B34037 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B34037 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B34037

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B34037	#FFFFFF	#000000	##FFFFFF
##B34037	1.00	5.67	3.71	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5735

Deuteranopia (green-blind)

#7C7034

Tritanopia (blue-blind)

#C5243F

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b34037;
/* rgb */ color: rgb(179, 64, 55);
/* oklch */ color: oklch(53.1% 0.151 27.8);

Tailwind

colors: {
  custom: {
    50: '#d17a6e',
    500: '#b34037',
    950: '#000000',
  },
}

SCSS

$custom: #b34037;
$custom-light: #d17a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b34037",
  "rgb": {
    "r": 179,
    "g": 64,
    "b": 55
  },
  "hsl": {
    "h": 4.355,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.53103,
    "c": 0.15137,
    "h": 27.8
  },
  "luminance": 0.13526
}

Semantic roles & 50–950 ramp

primary

#B34037

secondary

#81C0C5

accent

#D2DC4B

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B34037

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

Preview Lab → · Contrast checker → · Palette generator →