#B13A2A#B13A2A

#B13A2A is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.9% C 0.158 H 30.7°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#B13A2A
RGB	rgb(177, 58, 42)
HSL	hsl(7, 62%, 43%)
HSV	hsv(7, 76%, 69%)
CMYK	cmyk(0%, 67.2%, 76.3%, 30.6%)
CIE-LAB	lab(42.07, 47.43, 36.19)
CIE-LCH	lch(42.07, 59.66, 37.35°)
OKLab	oklab(51.87% 0.1355 0.0804)
OKLCH	oklch(51.87% 0.158 30.7)
XYZ	xyz(20.0647, 12.5433, 3.5546)
Luminance	0.1254 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13A2A #2AA1B1

analogous

#B12A5D #B13A2A #B17D2A

triadic

#B13A2A #2AB13A #3A2AB1

tetradic

#B13A2A #5DB12A #2AA1B1 #7D2AB1

square

#B13A2A #5DB12A #2AA1B1 #7D2AB1

split-complementary

#B13A2A #2AB17D #2A5DB1

monochromatic

#4E1A13 #802A1E #B13A2A #D35645 #DF8377

Accessibility & contrast

On white

5.99

#B13A2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B13A2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13A2A

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13A2A	#FFFFFF	#000000	##FFFFFF
##B13A2A	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5327

Deuteranopia (green-blind)

#796D26

Tritanopia (blue-blind)

#C31737

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b13a2a;
/* rgb */ color: rgb(177, 58, 42);
/* oklch */ color: oklch(51.9% 0.158 30.7);

Tailwind

colors: {
  custom: {
    50: '#d07764',
    500: '#b13a2a',
    950: '#000000',
  },
}

SCSS

$custom: #b13a2a;
$custom-light: #d07764;
$custom-dark: #000000;

JSON

{
  "hex": "#b13a2a",
  "rgb": {
    "r": 177,
    "g": 58,
    "b": 42
  },
  "hsl": {
    "h": 7.111,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5187,
    "c": 0.15754,
    "h": 30.7
  },
  "luminance": 0.1254
}

Semantic roles & 50–950 ramp

primary

#B13A2A

secondary

#70BCC6

accent

#D2E543

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B13A2A

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

Preview Lab → · Contrast checker → · Palette generator →