#B12437#B12437

#B12437 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.9% C 0.175 H 19.8°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#B12437
RGB	rgb(177, 36, 55)
HSL	hsl(352, 66%, 42%)
HSV	hsv(352, 80%, 69%)
CMYK	cmyk(0%, 79.7%, 68.9%, 30.6%)
CIE-LAB	lab(39.39, 55.91, 25.39)
CIE-LCH	lch(39.39, 61.41, 24.42°)
OKLab	oklab(49.93% 0.1651 0.0594)
OKLCH	oklch(49.93% 0.175 19.8)
XYZ	xyz(19.4541, 10.8877, 4.6909)
Luminance	0.1089 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B12437 #24B19E

analogous

#B1247E #B12437 #B15824

triadic

#B12437 #37B124 #2437B1

tetradic

#B12437 #7EB124 #24B19E #5824B1

square

#B12437 #7EB124 #24B19E #5824B1

split-complementary

#B12437 #24B158 #247EB1

monochromatic

#4B0F17 #7E1A27 #B12437 #D73B50 #E16E7D

Accessibility & contrast

On white

6.61

#B12437 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#B12437 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B12437

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B12437	#FFFFFF	#000000	##FFFFFF
##B12437	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4A37

Deuteranopia (green-blind)

#726733

Tritanopia (blue-blind)

#C3002D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b12437;
/* rgb */ color: rgb(177, 36, 55);
/* oklch */ color: oklch(49.9% 0.175 19.8);

Tailwind

colors: {
  custom: {
    50: '#d06d6d',
    500: '#b12437',
    950: '#000000',
  },
}

SCSS

$custom: #b12437;
$custom-light: #d06d6d;
$custom-dark: #000000;

JSON

{
  "hex": "#b12437",
  "rgb": {
    "r": 177,
    "g": 36,
    "b": 55
  },
  "hsl": {
    "h": 351.915,
    "s": 66.197,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49931,
    "c": 0.17547,
    "h": 19.8
  },
  "luminance": 0.10885
}

Semantic roles & 50–950 ramp

primary

#B12437

secondary

#69C8BB

accent

#E9D23F

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #B12437

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

Preview Lab → · Contrast checker → · Palette generator →