#B3291F#B3291F

#B3291F is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.4% C 0.176 H 29.1°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#B3291F
RGB	rgb(179, 41, 31)
HSL	hsl(4, 70%, 41%)
HSV	hsv(4, 83%, 70%)
CMYK	cmyk(0%, 77.1%, 82.7%, 29.8%)
CIE-LAB	lab(40.03, 54.04, 40.24)
CIE-LCH	lch(40.03, 67.37, 36.67°)
OKLab	oklab(50.39% 0.1538 0.0856)
OKLCH	oklch(50.39% 0.176 29.1)
XYZ	xyz(19.6331, 11.2717, 2.4380)
Luminance	0.1127 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3291F #1FA9B3

analogous

#B31F5F #B3291F #B3731F

triadic

#B3291F #1FB329 #291FB3

tetradic

#B3291F #5FB31F #1FA9B3 #731FB3

square

#B3291F #5FB31F #1FA9B3 #731FB3

split-complementary

#B3291F #1FB373 #1F5FB3

monochromatic

#4B110D #7F1D16 #B3291F #DC3F33 #E57068

Accessibility & contrast

On white

6.45

#B3291F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#B3291F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3291F

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3291F	#FFFFFF	#000000	##FFFFFF
##B3291F	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544B1C

Deuteranopia (green-blind)

#766918

Tritanopia (blue-blind)

#C60028

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b3291f;
/* rgb */ color: rgb(179, 41, 31);
/* oklch */ color: oklch(50.4% 0.176 29.1);

Tailwind

colors: {
  custom: {
    50: '#d36f5c',
    500: '#b3291f',
    950: '#000000',
  },
}

SCSS

$custom: #b3291f;
$custom-light: #d36f5c;
$custom-dark: #000000;

JSON

{
  "hex": "#b3291f",
  "rgb": {
    "r": 179,
    "g": 41,
    "b": 31
  },
  "hsl": {
    "h": 4.054,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.50385,
    "c": 0.17597,
    "h": 29.1
  },
  "luminance": 0.11269
}

Semantic roles & 50–950 ramp

primary

#B3291F

secondary

#64C3CA

accent

#E1ED3B

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160804

muted

#847B79

Preview Lab

Preview with #B3291F

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

Preview Lab → · Contrast checker → · Palette generator →