#B42F2F#B42F2F

#B42F2F is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.3% C 0.170 H 25.5°. Best body text is #FFFFFF at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#B42F2F
RGB	rgb(180, 47, 47)
HSL	hsl(0, 59%, 45%)
HSV	hsv(0, 74%, 71%)
CMYK	cmyk(0%, 73.9%, 73.9%, 29.4%)
CIE-LAB	lab(41.13, 52.90, 32.44)
CIE-LCH	lch(41.13, 62.06, 31.52°)
OKLab	oklab(51.29% 0.1534 0.0733)
OKLCH	oklch(51.29% 0.17 25.5)
XYZ	xyz(20.3543, 11.9447, 3.9226)
Luminance	0.1194 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42F2F #2FB4B4

analogous

#B42F72 #B42F2F #B4722F

triadic

#B42F2F #2FB42F #2F2FB4

tetradic

#B42F2F #72B42F #2FB4B4 #722FB4

square

#B42F2F #72B42F #2FB4B4 #722FB4

split-complementary

#B42F2F #2FB472 #2F72B4

monochromatic

#531616 #832222 #B42F2F #D14F4F #DE8080

Accessibility & contrast

On white

6.20

#B42F2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B42F2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42F2F

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42F2F	#FFFFFF	#000000	##FFFFFF
##B42F2F	1.00	6.20	3.39	6.20
#FFFFFF	6.20	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F2D

Deuteranopia (green-blind)

#776B2A

Tritanopia (blue-blind)

#C60031

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b42f2f;
/* rgb */ color: rgb(180, 47, 47);
/* oklch */ color: oklch(51.3% 0.170 25.5);

Tailwind

colors: {
  custom: {
    50: '#d37268',
    500: '#b42f2f',
    950: '#000000',
  },
}

SCSS

$custom: #b42f2f;
$custom-light: #d37268;
$custom-dark: #000000;

JSON

{
  "hex": "#b42f2f",
  "rgb": {
    "r": 180,
    "g": 47,
    "b": 47
  },
  "hsl": {
    "h": 0,
    "s": 58.59,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5129,
    "c": 0.16996,
    "h": 25.5
  },
  "luminance": 0.11942
}

Semantic roles & 50–950 ramp

primary

#B42F2F

secondary

#78C7C7

accent

#E2E246

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B42F2F

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

Preview Lab → · Contrast checker → · Palette generator →