#B3321F#B3321F

#B3321F is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.2% C 0.169 H 31.4°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#B3321F
RGB	rgb(179, 50, 31)
HSL	hsl(8, 70%, 41%)
HSV	hsv(8, 83%, 70%)
CMYK	cmyk(0%, 72.1%, 82.7%, 29.8%)
CIE-LAB	lab(41.16, 50.91, 41.31)
CIE-LCH	lch(41.16, 65.56, 39.06°)
OKLab	oklab(51.23% 0.144 0.088)
OKLCH	oklch(51.23% 0.169 31.4)
XYZ	xyz(19.9807, 11.9669, 2.5538)
Luminance	0.1196 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3321F #1FA0B3

analogous

#B31F56 #B3321F #B37C1F

triadic

#B3321F #1FB332 #321FB3

tetradic

#B3321F #56B31F #1FA0B3 #7C1FB3

square

#B3321F #56B31F #1FA0B3 #7C1FB3

split-complementary

#B3321F #1FB37C #1F56B3

monochromatic

#4B150D #7F2316 #B3321F #DC4933 #E57868

Accessibility & contrast

On white

6.19

#B3321F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B3321F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3321F

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3321F	#FFFFFF	#000000	##FFFFFF
##B3321F	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594F1B

Deuteranopia (green-blind)

#796B18

Tritanopia (blue-blind)

#C5002F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b3321f;
/* rgb */ color: rgb(179, 50, 31);
/* oklch */ color: oklch(51.2% 0.169 31.4);

Tailwind

colors: {
  custom: {
    50: '#d3735d',
    500: '#b3321f',
    950: '#000000',
  },
}

SCSS

$custom: #b3321f;
$custom-light: #d3735d;
$custom-dark: #000000;

JSON

{
  "hex": "#b3321f",
  "rgb": {
    "r": 179,
    "g": 50,
    "b": 31
  },
  "hsl": {
    "h": 7.703,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.51228,
    "c": 0.16872,
    "h": 31.4
  },
  "luminance": 0.11964
}

Semantic roles & 50–950 ramp

primary

#B3321F

secondary

#64BDCA

accent

#D6ED3B

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B3321F

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

Preview Lab → · Contrast checker → · Palette generator →