#B13F2B#B13F2B

#B13F2B is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.153 H 32.2°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B13F2B
RGB	rgb(177, 63, 43)
HSL	hsl(9, 61%, 43%)
HSV	hsv(9, 76%, 69%)
CMYK	cmyk(0%, 64.4%, 75.7%, 30.6%)
CIE-LAB	lab(42.88, 45.30, 36.52)
CIE-LCH	lch(42.88, 58.19, 38.87°)
OKLab	oklab(52.49% 0.1291 0.0814)
OKLCH	oklch(52.49% 0.153 32.2)
XYZ	xyz(20.3472, 13.0795, 3.7382)
Luminance	0.1308 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13F2B #2B9DB1

analogous

#B12B5A #B13F2B #B1822B

triadic

#B13F2B #2BB13F #3F2BB1

tetradic

#B13F2B #5AB12B #2B9DB1 #822BB1

square

#B13F2B #5AB12B #2B9DB1 #822BB1

split-complementary

#B13F2B #2BB182 #2B5AB1

monochromatic

#4F1C13 #802D1F #B13F2B #D25C47 #DE8778

Accessibility & contrast

On white

5.81

#B13F2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B13F2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13F2B

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13F2B	#FFFFFF	#000000	##FFFFFF
##B13F2B	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5528

Deuteranopia (green-blind)

#7B6F27

Tritanopia (blue-blind)

#C3213B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b13f2b;
/* rgb */ color: rgb(177, 63, 43);
/* oklch */ color: oklch(52.5% 0.153 32.2);

Tailwind

colors: {
  custom: {
    50: '#d07965',
    500: '#b13f2b',
    950: '#000000',
  },
}

SCSS

$custom: #b13f2b;
$custom-light: #d07965;
$custom-dark: #000000;

JSON

{
  "hex": "#b13f2b",
  "rgb": {
    "r": 177,
    "g": 63,
    "b": 43
  },
  "hsl": {
    "h": 8.955,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52487,
    "c": 0.15256,
    "h": 32.2
  },
  "luminance": 0.13077
}

Semantic roles & 50–950 ramp

primary

#B13F2B

secondary

#72BAC6

accent

#CCE444

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13F2B

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

Preview Lab → · Contrast checker → · Palette generator →