#B12F3F#B12F3F

#B12F3F is a mid, vivid red. Relative luminance 0.117; OKLCH L 51.0% C 0.166 H 18.7°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#B12F3F
RGB	rgb(177, 47, 63)
HSL	hsl(353, 58%, 44%)
HSV	hsv(353, 73%, 69%)
CMYK	cmyk(0%, 73.4%, 64.4%, 30.6%)
CIE-LAB	lab(40.80, 52.79, 22.20)
CIE-LCH	lch(40.80, 57.27, 22.81°)
OKLab	oklab(51.02% 0.1568 0.0532)
OKLCH	oklch(51.02% 0.166 18.7)
XYZ	xyz(20.0473, 11.7420, 5.9125)
Luminance	0.1174 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B12F3F #2FB1A1

analogous

#B12F80 #B12F3F #B1602F

triadic

#B12F3F #3FB12F #2F3FB1

tetradic

#B12F3F #80B12F #2FB1A1 #602FB1

square

#B12F3F #80B12F #2FB1A1 #602FB1

split-complementary

#B12F3F #2FB160 #2F80B1

monochromatic

#50151D #81222E #B12F3F #D04D5D #DD7E89

Accessibility & contrast

On white

6.27

#B12F3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#B12F3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B12F3F

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B12F3F	#FFFFFF	#000000	##FFFFFF
##B12F3F	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534F3F

Deuteranopia (green-blind)

#746A3B

Tritanopia (blue-blind)

#C20036

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b12f3f;
/* rgb */ color: rgb(177, 47, 63);
/* oklch */ color: oklch(51.0% 0.166 18.7);

Tailwind

colors: {
  custom: {
    50: '#d07273',
    500: '#b12f3f',
    950: '#000000',
  },
}

SCSS

$custom: #b12f3f;
$custom-light: #d07273;
$custom-dark: #000000;

JSON

{
  "hex": "#b12f3f",
  "rgb": {
    "r": 177,
    "g": 47,
    "b": 63
  },
  "hsl": {
    "h": 352.615,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.51023,
    "c": 0.1656,
    "h": 18.7
  },
  "luminance": 0.11739
}

Semantic roles & 50–950 ramp

primary

#B12F3F

secondary

#76C5BC

accent

#E1CE47

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150808

muted

#837B7B

Preview Lab

Preview with #B12F3F

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

Preview Lab → · Contrast checker → · Palette generator →