#B13A3F#B13A3F

#B13A3F is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.154 H 21.9°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#B13A3F
RGB	rgb(177, 58, 63)
HSL	hsl(357, 51%, 46%)
HSV	hsv(357, 67%, 69%)
CMYK	cmyk(0%, 67.2%, 64.4%, 30.6%)
CIE-LAB	lab(42.36, 48.51, 24.19)
CIE-LCH	lch(42.36, 54.20, 26.50°)
OKLab	oklab(52.19% 0.1432 0.0577)
OKLCH	oklch(52.19% 0.154 21.9)
XYZ	xyz(20.5438, 12.7350, 6.0780)
Luminance	0.1273 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13A3F #3AB1AC

analogous

#B13A7A #B13A3F #B1703A

triadic

#B13A3F #3FB13A #3A3FB1

tetradic

#B13A3F #7AB13A #3AB1AC #703AB1

square

#B13A3F #7AB13A #3AB1AC #703AB1

split-complementary

#B13A3F #3AB170 #3A7AB1

monochromatic

#551C1E #832B2F #B13A3F #CA5E63 #D98C8F

Accessibility & contrast

On white

5.92

#B13A3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B13A3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13A3F

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13A3F	#FFFFFF	#000000	##FFFFFF
##B13A3F	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A543E

Deuteranopia (green-blind)

#786D3C

Tritanopia (blue-blind)

#C21D3D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b13a3f;
/* rgb */ color: rgb(177, 58, 63);
/* oklch */ color: oklch(52.2% 0.154 21.9);

Tailwind

colors: {
  custom: {
    50: '#cf7774',
    500: '#b13a3f',
    950: '#000000',
  },
}

SCSS

$custom: #b13a3f;
$custom-light: #cf7774;
$custom-dark: #000000;

JSON

{
  "hex": "#b13a3f",
  "rgb": {
    "r": 177,
    "g": 58,
    "b": 63
  },
  "hsl": {
    "h": 357.479,
    "s": 50.638,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52185,
    "c": 0.15438,
    "h": 21.9
  },
  "luminance": 0.12732
}

Semantic roles & 50–950 ramp

primary

#B13A3F

secondary

#83C4C1

accent

#DAD44E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B13A3F

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

Preview Lab → · Contrast checker → · Palette generator →