#B1273F#B1273F

#B1273F is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.3% C 0.173 H 16.9°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#B1273F
RGB	rgb(177, 39, 63)
HSL	hsl(350, 64%, 42%)
HSV	hsv(350, 78%, 69%)
CMYK	cmyk(0%, 78%, 64.4%, 30.6%)
CIE-LAB	lab(39.85, 55.46, 20.97)
CIE-LCH	lch(39.85, 59.29, 20.72°)
OKLab	oklab(50.32% 0.1654 0.0504)
OKLCH	oklch(50.32% 0.173 16.9)
XYZ	xyz(19.7563, 11.1600, 5.8155)
Luminance	0.1116 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1273F #27B199

analogous

#B12784 #B1273F #B15427

triadic

#B1273F #3FB127 #273FB1

tetradic

#B1273F #84B127 #27B199 #5427B1

square

#B1273F #84B127 #27B199 #5427B1

split-complementary

#B1273F #27B154 #2784B1

monochromatic

#4D111B #7F1C2D #B1273F #D5405A #E07285

Accessibility & contrast

On white

6.50

#B1273F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#B1273F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1273F

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1273F	#FFFFFF	#000000	##FFFFFF
##B1273F	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4B3F

Deuteranopia (green-blind)

#72683B

Tritanopia (blue-blind)

#C20031

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b1273f;
/* rgb */ color: rgb(177, 39, 63);
/* oklch */ color: oklch(50.3% 0.173 16.9);

Tailwind

colors: {
  custom: {
    50: '#d06e73',
    500: '#b1273f',
    950: '#000000',
  },
}

SCSS

$custom: #b1273f;
$custom-light: #d06e73;
$custom-dark: #000000;

JSON

{
  "hex": "#b1273f",
  "rgb": {
    "r": 177,
    "g": 39,
    "b": 63
  },
  "hsl": {
    "h": 349.565,
    "s": 63.889,
    "l": 42.353
  },
  "oklch": {
    "l": 0.50315,
    "c": 0.17288,
    "h": 16.9
  },
  "luminance": 0.11157
}

Semantic roles & 50–950 ramp

primary

#B1273F

secondary

#6DC7B7

accent

#E7CA41

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150808

muted

#837B7B

Preview Lab

Preview with #B1273F

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

Preview Lab → · Contrast checker → · Palette generator →