#B3303E#B3303E

#B3303E is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.5% C 0.167 H 19.6°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#B3303E
RGB	rgb(179, 48, 62)
HSL	hsl(354, 58%, 45%)
HSV	hsv(354, 73%, 70%)
CMYK	cmyk(0%, 73.2%, 65.4%, 29.8%)
CIE-LAB	lab(41.29, 52.99, 23.52)
CIE-LCH	lch(41.29, 57.98, 23.93°)
OKLab	oklab(51.45% 0.157 0.056)
OKLCH	oklch(51.45% 0.167 19.6)
XYZ	xyz(20.5190, 12.0484, 5.8016)
Luminance	0.1205 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3303E #30B3A5

analogous

#B33080 #B3303E #B36430

triadic

#B3303E #3EB330 #303EB3

tetradic

#B3303E #80B330 #30B3A5 #6430B3

square

#B3303E #80B330 #30B3A5 #6430B3

split-complementary

#B3303E #30B364 #3080B3

monochromatic

#52161D #83232D #B3303E #D0505E #DD808A

Accessibility & contrast

On white

6.16

#B3303E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B3303E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3303E

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3303E	#FFFFFF	#000000	##FFFFFF
##B3303E	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55503E

Deuteranopia (green-blind)

#766B3A

Tritanopia (blue-blind)

#C40036

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b3303e;
/* rgb */ color: rgb(179, 48, 62);
/* oklch */ color: oklch(51.5% 0.167 19.6);

Tailwind

colors: {
  custom: {
    50: '#d17273',
    500: '#b3303e',
    950: '#000000',
  },
}

SCSS

$custom: #b3303e;
$custom-light: #d17273;
$custom-dark: #000000;

JSON

{
  "hex": "#b3303e",
  "rgb": {
    "r": 179,
    "g": 48,
    "b": 62
  },
  "hsl": {
    "h": 353.588,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51451,
    "c": 0.16671,
    "h": 19.6
  },
  "luminance": 0.12045
}

Semantic roles & 50–950 ramp

primary

#B3303E

secondary

#79C6BE

accent

#E1D047

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B3303E

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

Preview Lab → · Contrast checker → · Palette generator →