#B3374B#B3374B

#B3374B is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.4% C 0.159 H 15.3°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B3374B
RGB	rgb(179, 55, 75)
HSL	hsl(350, 53%, 46%)
HSV	hsv(350, 69%, 70%)
CMYK	cmyk(0%, 69.3%, 58.1%, 29.8%)
CIE-LAB	lab(42.50, 51.20, 17.05)
CIE-LCH	lch(42.50, 53.97, 18.42°)
OKLab	oklab(52.43% 0.1537 0.0422)
OKLCH	oklch(52.43% 0.159 15.3)
XYZ	xyz(21.2286, 12.8270, 8.0133)
Luminance	0.1282 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3374B #37B39F

analogous

#B33789 #B3374B #B36137

triadic

#B3374B #4BB337 #374BB3

tetradic

#B3374B #89B337 #37B39F #6137B3

square

#B3374B #89B337 #37B39F #6137B3

split-complementary

#B3374B #37B361 #3789B3

monochromatic

#551A24 #842937 #B3374B #CD5B6D #DB8A97

Accessibility & contrast

On white

5.89

#B3374B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B3374B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3374B

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3374B	#FFFFFF	#000000	##FFFFFF
##B3374B	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57544B

Deuteranopia (green-blind)

#766E48

Tritanopia (blue-blind)

#C41A3F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b3374b;
/* rgb */ color: rgb(179, 55, 75);
/* oklch */ color: oklch(52.4% 0.159 15.3);

Tailwind

colors: {
  custom: {
    50: '#d0767d',
    500: '#b3374b',
    950: '#000000',
  },
}

SCSS

$custom: #b3374b;
$custom-light: #d0767d;
$custom-dark: #000000;

JSON

{
  "hex": "#b3374b",
  "rgb": {
    "r": 179,
    "g": 55,
    "b": 75
  },
  "hsl": {
    "h": 350.323,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52431,
    "c": 0.15939,
    "h": 15.3
  },
  "luminance": 0.12824
}

Semantic roles & 50–950 ramp

primary

#B3374B

secondary

#81C5BA

accent

#DCC54B

background

#FDF7F7

surface

#FBEDEE

border

#D4C8C9

text

#150909

muted

#837B7B

Preview Lab

Preview with #B3374B

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

Preview Lab → · Contrast checker → · Palette generator →