#B0273B#B0273B

#B0273B is a mid, vivid red. Relative luminance 0.110; OKLCH L 50.1% C 0.172 H 18.6°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#B0273B
RGB	rgb(176, 39, 59)
HSL	hsl(351, 64%, 42%)
HSV	hsv(351, 78%, 69%)
CMYK	cmyk(0%, 77.8%, 66.5%, 31%)
CIE-LAB	lab(39.58, 54.93, 23.09)
CIE-LCH	lch(39.58, 59.59, 22.80°)
OKLab	oklab(50.06% 0.163 0.0548)
OKLCH	oklch(50.06% 0.172 18.6)
XYZ	xyz(19.4216, 10.9999, 5.2374)
Luminance	0.1100 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0273B #27B09C

analogous

#B02780 #B0273B #B05827

triadic

#B0273B #3BB027 #273BB0

tetradic

#B0273B #80B027 #27B09C #5827B0

square

#B0273B #80B027 #27B09C #5827B0

split-complementary

#B0273B #27B058 #2780B0

monochromatic

#4C1119 #7E1C2A #B0273B #D54055 #E07282

Accessibility & contrast

On white

6.56

#B0273B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#B0273B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0273B

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0273B	#FFFFFF	#000000	##FFFFFF
##B0273B	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4B3B

Deuteranopia (green-blind)

#726837

Tritanopia (blue-blind)

#C10030

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b0273b;
/* rgb */ color: rgb(176, 39, 59);
/* oklch */ color: oklch(50.1% 0.172 18.6);

Tailwind

colors: {
  custom: {
    50: '#cf6e70',
    500: '#b0273b',
    950: '#000000',
  },
}

SCSS

$custom: #b0273b;
$custom-light: #cf6e70;
$custom-dark: #000000;

JSON

{
  "hex": "#b0273b",
  "rgb": {
    "r": 176,
    "g": 39,
    "b": 59
  },
  "hsl": {
    "h": 351.241,
    "s": 63.721,
    "l": 42.157
  },
  "oklch": {
    "l": 0.50058,
    "c": 0.17195,
    "h": 18.6
  },
  "luminance": 0.10997
}

Semantic roles & 50–950 ramp

primary

#B0273B

secondary

#6CC7B9

accent

#E7CF41

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #B0273B

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

Preview Lab → · Contrast checker → · Palette generator →