#B1273B#B1273B

#B1273B is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.2% C 0.173 H 18.7°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#B1273B
RGB	rgb(177, 39, 59)
HSL	hsl(351, 64%, 42%)
HSV	hsv(351, 78%, 69%)
CMYK	cmyk(0%, 78%, 66.7%, 30.6%)
CIE-LAB	lab(39.78, 55.23, 23.38)
CIE-LCH	lch(39.78, 59.97, 22.95°)
OKLab	oklab(50.24% 0.1638 0.0554)
OKLCH	oklch(50.24% 0.173 18.7)
XYZ	xyz(19.6486, 11.1169, 5.2480)
Luminance	0.1111 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1273B #27B19D

analogous

#B12780 #B1273B #B15827

triadic

#B1273B #3BB127 #273BB1

tetradic

#B1273B #80B127 #27B19D #5827B1

square

#B1273B #80B127 #27B19D #5827B1

split-complementary

#B1273B #27B158 #2780B1

monochromatic

#4D111A #7F1C2A #B1273B #D54056 #E07282

Accessibility & contrast

On white

6.52

#B1273B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#B1273B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1273B

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1273B	#FFFFFF	#000000	##FFFFFF
##B1273B	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B3B

Deuteranopia (green-blind)

#726837

Tritanopia (blue-blind)

#C30030

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b1273b;
/* rgb */ color: rgb(177, 39, 59);
/* oklch */ color: oklch(50.2% 0.173 18.7);

Tailwind

colors: {
  custom: {
    50: '#d06e70',
    500: '#b1273b',
    950: '#000000',
  },
}

SCSS

$custom: #b1273b;
$custom-light: #d06e70;
$custom-dark: #000000;

JSON

{
  "hex": "#b1273b",
  "rgb": {
    "r": 177,
    "g": 39,
    "b": 59
  },
  "hsl": {
    "h": 351.304,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.50239,
    "c": 0.17291,
    "h": 18.7
  },
  "luminance": 0.11114
}

Semantic roles & 50–950 ramp

primary

#B1273B

secondary

#6DC7BA

accent

#E7CF41

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #B1273B

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

Preview Lab → · Contrast checker → · Palette generator →