#B42F3B#B42F3B

#B42F3B is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.169 H 20.8°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#B42F3B
RGB	rgb(180, 47, 59)
HSL	hsl(355, 59%, 45%)
HSV	hsv(355, 74%, 71%)
CMYK	cmyk(0%, 73.9%, 67.2%, 29.4%)
CIE-LAB	lab(41.30, 53.49, 25.42)
CIE-LCH	lch(41.30, 59.22, 25.42°)
OKLab	oklab(51.48% 0.1578 0.0599)
OKLCH	oklch(51.48% 0.169 20.8)
XYZ	xyz(20.6306, 12.0552, 5.3774)
Luminance	0.1205 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42F3B #2FB4A8

analogous

#B42F7E #B42F3B #B4652F

triadic

#B42F3B #3BB42F #2F3BB4

tetradic

#B42F3B #7EB42F #2FB4A8 #652FB4

square

#B42F3B #7EB42F #2FB4A8 #652FB4

split-complementary

#B42F3B #2FB465 #2F7EB4

monochromatic

#53161B #83222B #B42F3B #D14F5B #DE8088

Accessibility & contrast

On white

6.16

#B42F3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B42F3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42F3B

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42F3B	#FFFFFF	#000000	##FFFFFF
##B42F3B	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)

#554F3A

Deuteranopia (green-blind)

#766C37

Tritanopia (blue-blind)

#C60035

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b42f3b;
/* rgb */ color: rgb(180, 47, 59);
/* oklch */ color: oklch(51.5% 0.169 20.8);

Tailwind

colors: {
  custom: {
    50: '#d27271',
    500: '#b42f3b',
    950: '#000000',
  },
}

SCSS

$custom: #b42f3b;
$custom-light: #d27271;
$custom-dark: #000000;

JSON

{
  "hex": "#b42f3b",
  "rgb": {
    "r": 180,
    "g": 47,
    "b": 59
  },
  "hsl": {
    "h": 354.586,
    "s": 58.59,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51477,
    "c": 0.16881,
    "h": 20.8
  },
  "luminance": 0.12052
}

Semantic roles & 50–950 ramp

primary

#B42F3B

secondary

#78C7C0

accent

#E2D446

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B42F3B

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

Preview Lab → · Contrast checker → · Palette generator →