#BF3731#BF3731

#BF3731 is a mid, vivid red. Relative luminance 0.140; OKLCH L 54.0% C 0.174 H 27.2°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#BF3731
RGB	rgb(191, 55, 49)
HSL	hsl(3, 59%, 47%)
HSV	hsv(3, 74%, 75%)
CMYK	cmyk(0%, 71.2%, 74.3%, 25.1%)
CIE-LAB	lab(44.28, 53.58, 35.40)
CIE-LCH	lch(44.28, 64.22, 33.45°)
OKLab	oklab(54.03% 0.1546 0.0795)
OKLCH	oklch(54.03% 0.174 27.2)
XYZ	xyz(23.4091, 14.0340, 4.3814)
Luminance	0.1403 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BF3731 #31B9BF

analogous

#BF3172 #BF3731 #BF7E31

triadic

#BF3731 #31BF37 #3731BF

tetradic

#BF3731 #72BF31 #31B9BF #7E31BF

square

#BF3731 #72BF31 #31B9BF #7E31BF

split-complementary

#BF3731 #31BF7E #3172BF

monochromatic

#5E1B18 #8E2925 #BF3731 #D45E59 #E18D8A

Accessibility & contrast

On white

5.52

#BF3731 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#BF3731 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BF3731

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BF3731	#FFFFFF	#000000	##FFFFFF
##BF3731	1.00	5.52	3.81	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F562F

Deuteranopia (green-blind)

#80742C

Tritanopia (blue-blind)

#D20037

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #bf3731;
/* rgb */ color: rgb(191, 55, 49);
/* oklch */ color: oklch(54.0% 0.174 27.2);

Tailwind

colors: {
  custom: {
    50: '#db776a',
    500: '#bf3731',
    950: '#000000',
  },
}

SCSS

$custom: #bf3731;
$custom-light: #db776a;
$custom-dark: #000000;

JSON

{
  "hex": "#bf3731",
  "rgb": {
    "r": 191,
    "g": 55,
    "b": 49
  },
  "hsl": {
    "h": 2.535,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.54028,
    "c": 0.17383,
    "h": 27.2
  },
  "luminance": 0.1403
}

Semantic roles & 50–950 ramp

primary

#BF3731

secondary

#81C8CB

accent

#DCE245

background

#FEF7F6

surface

#FDEEEB

border

#D5C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #BF3731

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

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