#B1302A#B1302A

#B1302A is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.8% C 0.167 H 27.5°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#B1302A
RGB	rgb(177, 48, 42)
HSL	hsl(3, 62%, 43%)
HSV	hsv(3, 76%, 69%)
CMYK	cmyk(0%, 72.9%, 76.3%, 30.6%)
CIE-LAB	lab(40.62, 51.37, 34.63)
CIE-LCH	lch(40.62, 61.96, 33.98°)
OKLab	oklab(50.79% 0.1479 0.077)
OKLCH	oklch(50.79% 0.167 27.5)
XYZ	xyz(19.6086, 11.6312, 3.4026)
Luminance	0.1163 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1302A #2AABB1

analogous

#B12A67 #B1302A #B1742A

triadic

#B1302A #2AB130 #302AB1

tetradic

#B1302A #67B12A #2AABB1 #742AB1

square

#B1302A #67B12A #2AABB1 #742AB1

split-complementary

#B1302A #2AB174 #2A67B1

monochromatic

#4E1513 #80231E #B1302A #D34C45 #DF7B77

Accessibility & contrast

On white

6.31

#B1302A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#B1302A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1302A

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1302A	#FFFFFF	#000000	##FFFFFF
##B1302A	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E28

Deuteranopia (green-blind)

#766A25

Tritanopia (blue-blind)

#C30030

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b1302a;
/* rgb */ color: rgb(177, 48, 42);
/* oklch */ color: oklch(50.8% 0.167 27.5);

Tailwind

colors: {
  custom: {
    50: '#d17264',
    500: '#b1302a',
    950: '#000000',
  },
}

SCSS

$custom: #b1302a;
$custom-light: #d17264;
$custom-dark: #000000;

JSON

{
  "hex": "#b1302a",
  "rgb": {
    "r": 177,
    "g": 48,
    "b": 42
  },
  "hsl": {
    "h": 2.667,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.5079,
    "c": 0.16671,
    "h": 27.5
  },
  "luminance": 0.11628
}

Semantic roles & 50–950 ramp

primary

#B1302A

secondary

#70C3C6

accent

#DEE543

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B1302A

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

Preview Lab → · Contrast checker → · Palette generator →