#B1273E#B1273E

#B1273E is a mid, vivid red. Relative luminance 0.111; OKLCH L 50.3% C 0.173 H 17.4°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX#B1273E
RGBrgb(177, 39, 62)
HSLhsl(350, 64%, 42%)
HSVhsv(350, 78%, 69%)
CMYKcmyk(0%, 78%, 65%, 30.6%)
CIE-LABlab(39.83, 55.40, 21.57)
CIE-LCHlch(39.83, 59.45, 21.28°)
OKLaboklab(50.3% 0.165 0.0516)
OKLCHoklch(50.3% 0.173 17.4)
XYZxyz(19.7286, 11.1489, 5.6696)
Luminance0.1115 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#B1273E #27B19A
analogous
#B12783 #B1273E #B15527
triadic
#B1273E #3EB127 #273EB1
tetradic
#B1273E #83B127 #27B19A #5527B1
square
#B1273E #83B127 #27B19A #5527B1
split-complementary
#B1273E #27B155 #2783B1
monochromatic
#4D111B #7F1C2C #B1273E #D54059 #E07285

Accessibility & contrast

On white

6.50
#B1273E on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.23
#B1273E on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1273E
6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##B1273E#FFFFFF#000000##FFFFFF
##B1273E1.006.503.236.50
#FFFFFF6.501.0021.001.00
#0000003.2321.001.0021.00
##FFFFFF6.501.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4F4B3E
Deuteranopia (green-blind)
#72683A
Tritanopia (blue-blind)
#C20031
Achromatopsia (no color)
#5E5E5E

Design tokens & code

CSS
--color: #b1273e;
/* rgb */ color: rgb(177, 39, 62);
/* oklch */ color: oklch(50.3% 0.173 17.4);
Tailwind
colors: {
  custom: {
    50: '#d06e73',
    500: '#b1273e',
    950: '#000000',
  },
}
SCSS
$custom: #b1273e;
$custom-light: #d06e73;
$custom-dark: #000000;
JSON
{
  "hex": "#b1273e",
  "rgb": {
    "r": 177,
    "g": 39,
    "b": 62
  },
  "hsl": {
    "h": 350,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.50296,
    "c": 0.17287,
    "h": 17.4
  },
  "luminance": 0.11146
}

Semantic roles & 50–950 ramp

primary
#B1273E
secondary
#6DC7B8
accent
#E7CB41
background
#FDF7F6
surface
#FBEDEC
border
#D4C8C7
text
#150808
muted
#837B7B

Preview Lab

Preview with #B1273E

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

Preview Lab → · Contrast checker → · Palette generator →

#B1273E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva