#B1302B#B1302B

#B1302B is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.8% C 0.167 H 27.2°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#B1302B
RGB	rgb(177, 48, 43)
HSL	hsl(2, 61%, 43%)
HSV	hsv(2, 76%, 69%)
CMYK	cmyk(0%, 72.9%, 75.7%, 30.6%)
CIE-LAB	lab(40.64, 51.41, 34.07)
CIE-LCH	lch(40.64, 61.68, 33.53°)
OKLab	oklab(50.8% 0.1482 0.076)
OKLCH	oklch(50.8% 0.167 27.2)
XYZ	xyz(19.6267, 11.6384, 3.4980)
Luminance	0.1163 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1302B #2BACB1

analogous

#B12B69 #B1302B #B1732B

triadic

#B1302B #2BB130 #302BB1

tetradic

#B1302B #69B12B #2BACB1 #732BB1

square

#B1302B #69B12B #2BACB1 #732BB1

split-complementary

#B1302B #2BB173 #2B69B1

monochromatic

#4F1513 #80231F #B1302B #D24C47 #DE7C78

Accessibility & contrast

On white

6.31

#B1302B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#B1302B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1302B

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1302B	#FFFFFF	#000000	##FFFFFF
##B1302B	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)

#564E29

Deuteranopia (green-blind)

#766A26

Tritanopia (blue-blind)

#C30030

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b1302b;
/* rgb */ color: rgb(177, 48, 43);
/* oklch */ color: oklch(50.8% 0.167 27.2);

Tailwind

colors: {
  custom: {
    50: '#d17265',
    500: '#b1302b',
    950: '#000000',
  },
}

SCSS

$custom: #b1302b;
$custom-light: #d17265;
$custom-dark: #000000;

JSON

{
  "hex": "#b1302b",
  "rgb": {
    "r": 177,
    "g": 48,
    "b": 43
  },
  "hsl": {
    "h": 2.239,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50803,
    "c": 0.16656,
    "h": 27.2
  },
  "luminance": 0.11635
}

Semantic roles & 50–950 ramp

primary

#B1302B

secondary

#72C3C6

accent

#DEE444

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B1302B

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

Preview Lab → · Contrast checker → · Palette generator →