#B13F3E#B13F3E

#B13F3E is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.8% C 0.149 H 24.2°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B13F3E
RGB	rgb(177, 63, 62)
HSL	hsl(1, 48%, 47%)
HSV	hsv(1, 65%, 69%)
CMYK	cmyk(0%, 64.4%, 65%, 30.6%)
CIE-LAB	lab(43.14, 46.29, 25.78)
CIE-LCH	lch(43.14, 52.99, 29.11°)
OKLab	oklab(52.76% 0.136 0.0611)
OKLCH	oklch(52.76% 0.149 24.2)
XYZ	xyz(20.7805, 13.2528, 6.0203)
Luminance	0.1325 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13F3E #3EB0B1

analogous

#B13E77 #B13F3E #B1793E

triadic

#B13F3E #3EB13F #3F3EB1

tetradic

#B13F3E #77B13E #3EB0B1 #793EB1

square

#B13F3E #77B13E #3EB0B1 #793EB1

split-complementary

#B13F3E #3EB179 #3E77B1

monochromatic

#561F1E #842F2E #B13F3E #C96564 #D89291

Accessibility & contrast

On white

5.75

#B13F3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B13F3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13F3E

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13F3E	#FFFFFF	#000000	##FFFFFF
##B13F3E	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D573D

Deuteranopia (green-blind)

#7A6F3B

Tritanopia (blue-blind)

#C22540

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b13f3e;
/* rgb */ color: rgb(177, 63, 62);
/* oklch */ color: oklch(52.8% 0.149 24.2);

Tailwind

colors: {
  custom: {
    50: '#cf7a73',
    500: '#b13f3e',
    950: '#000000',
  },
}

SCSS

$custom: #b13f3e;
$custom-light: #cf7a73;
$custom-dark: #000000;

JSON

{
  "hex": "#b13f3e",
  "rgb": {
    "r": 177,
    "g": 63,
    "b": 62
  },
  "hsl": {
    "h": 0.522,
    "s": 48.117,
    "l": 46.863
  },
  "oklch": {
    "l": 0.52765,
    "c": 0.14911,
    "h": 24.2
  },
  "luminance": 0.1325
}

Semantic roles & 50–950 ramp

primary

#B13F3E

secondary

#87C3C4

accent

#D7D850

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B13F3E

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

Preview Lab → · Contrast checker → · Palette generator →