#B13A2B#B13A2B

#B13A2B is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.157 H 30.3°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#B13A2B
RGB	rgb(177, 58, 43)
HSL	hsl(7, 61%, 43%)
HSV	hsv(7, 76%, 69%)
CMYK	cmyk(0%, 67.2%, 75.7%, 30.6%)
CIE-LAB	lab(42.08, 47.47, 35.65)
CIE-LCH	lch(42.08, 59.36, 36.91°)
OKLab	oklab(51.88% 0.1358 0.0795)
OKLCH	oklch(51.88% 0.157 30.3)
XYZ	xyz(20.0828, 12.5506, 3.6501)
Luminance	0.1255 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13A2B #2BA2B1

analogous

#B12B5F #B13A2B #B17D2B

triadic

#B13A2B #2BB13A #3A2BB1

tetradic

#B13A2B #5FB12B #2BA2B1 #7D2BB1

square

#B13A2B #5FB12B #2BA2B1 #7D2BB1

split-complementary

#B13A2B #2BB17D #2B5FB1

monochromatic

#4F1A13 #802A1F #B13A2B #D25747 #DE8478

Accessibility & contrast

On white

5.98

#B13A2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B13A2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13A2B

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13A2B	#FFFFFF	#000000	##FFFFFF
##B13A2B	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5328

Deuteranopia (green-blind)

#796D27

Tritanopia (blue-blind)

#C31737

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b13a2b;
/* rgb */ color: rgb(177, 58, 43);
/* oklch */ color: oklch(51.9% 0.157 30.3);

Tailwind

colors: {
  custom: {
    50: '#d07765',
    500: '#b13a2b',
    950: '#000000',
  },
}

SCSS

$custom: #b13a2b;
$custom-light: #d07765;
$custom-dark: #000000;

JSON

{
  "hex": "#b13a2b",
  "rgb": {
    "r": 177,
    "g": 58,
    "b": 43
  },
  "hsl": {
    "h": 6.716,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.51882,
    "c": 0.15736,
    "h": 30.3
  },
  "luminance": 0.12548
}

Semantic roles & 50–950 ramp

primary

#B13A2B

secondary

#72BDC6

accent

#D2E444

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13A2B

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

Preview Lab → · Contrast checker → · Palette generator →