#B03439#B03439

#B03439 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.2% C 0.160 H 22.7°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#B03439
RGB	rgb(176, 52, 57)
HSL	hsl(358, 54%, 45%)
HSV	hsv(358, 70%, 69%)
CMYK	cmyk(0%, 70.5%, 67.6%, 31%)
CIE-LAB	lab(41.19, 50.25, 26.34)
CIE-LCH	lch(41.19, 56.73, 27.66°)
OKLab	oklab(51.25% 0.1476 0.0618)
OKLCH	oklch(51.25% 0.16 22.7)
XYZ	xyz(19.8731, 11.9844, 5.1369)
Luminance	0.1198 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03439 #34B0AB

analogous

#B03477 #B03439 #B06D34

triadic

#B03439 #39B034 #3439B0

tetradic

#B03439 #77B034 #34B0AB #6D34B0

square

#B03439 #77B034 #34B0AB #6D34B0

split-complementary

#B03439 #34B06D #3477B0

monochromatic

#52181A #81262A #B03439 #CD5559 #DB8487

Accessibility & contrast

On white

6.18

#B03439 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B03439 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03439

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03439	#FFFFFF	#000000	##FFFFFF
##B03439	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565038

Deuteranopia (green-blind)

#766B35

Tritanopia (blue-blind)

#C10D37

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03439;
/* rgb */ color: rgb(176, 52, 57);
/* oklch */ color: oklch(51.2% 0.160 22.7);

Tailwind

colors: {
  custom: {
    50: '#cf746f',
    500: '#b03439',
    950: '#000000',
  },
}

SCSS

$custom: #b03439;
$custom-light: #cf746f;
$custom-dark: #000000;

JSON

{
  "hex": "#b03439",
  "rgb": {
    "r": 176,
    "g": 52,
    "b": 57
  },
  "hsl": {
    "h": 357.581,
    "s": 54.386,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51246,
    "c": 0.16005,
    "h": 22.7
  },
  "luminance": 0.11981
}

Semantic roles & 50–950 ramp

primary

#B03439

secondary

#7CC4C1

accent

#DED84A

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03439

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

Preview Lab → · Contrast checker → · Palette generator →