#B12739#B12739

#B12739 is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.173 H 19.5°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#B12739
RGB	rgb(177, 39, 57)
HSL	hsl(352, 64%, 42%)
HSV	hsv(352, 78%, 69%)
CMYK	cmyk(0%, 78%, 67.8%, 30.6%)
CIE-LAB	lab(39.74, 55.12, 24.58)
CIE-LCH	lch(39.74, 60.35, 24.04°)
OKLab	oklab(50.2% 0.163 0.0578)
OKLCH	oklch(50.2% 0.173 19.5)
XYZ	xyz(19.5977, 11.0966, 4.9800)
Luminance	0.1109 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B12739 #27B19F

analogous

#B1277E #B12739 #B15A27

triadic

#B12739 #39B127 #2739B1

tetradic

#B12739 #7EB127 #27B19F #5A27B1

square

#B12739 #7EB127 #27B19F #5A27B1

split-complementary

#B12739 #27B15A #277EB1

monochromatic

#4D1119 #7F1C29 #B12739 #D54054 #E07281

Accessibility & contrast

On white

6.52

#B12739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B12739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B12739

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B12739	#FFFFFF	#000000	##FFFFFF
##B12739	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B39

Deuteranopia (green-blind)

#726835

Tritanopia (blue-blind)

#C3002F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b12739;
/* rgb */ color: rgb(177, 39, 57);
/* oklch */ color: oklch(50.2% 0.173 19.5);

Tailwind

colors: {
  custom: {
    50: '#d06e6f',
    500: '#b12739',
    950: '#000000',
  },
}

SCSS

$custom: #b12739;
$custom-light: #d06e6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b12739",
  "rgb": {
    "r": 177,
    "g": 39,
    "b": 57
  },
  "hsl": {
    "h": 352.174,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.50202,
    "c": 0.17297,
    "h": 19.5
  },
  "luminance": 0.11094
}

Semantic roles & 50–950 ramp

primary

#B12739

secondary

#6DC7BB

accent

#E7D141

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #B12739

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

Preview Lab → · Contrast checker → · Palette generator →