#A42F37#A42F37

#A42F37 is a mid, vivid red. Relative luminance 0.102; OKLCH L 48.6% C 0.153 H 21.3°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#A42F37
RGB	rgb(164, 47, 55)
HSL	hsl(356, 55%, 41%)
HSV	hsv(356, 71%, 64%)
CMYK	cmyk(0%, 71.3%, 66.5%, 35.7%)
CIE-LAB	lab(38.21, 48.16, 23.36)
CIE-LCH	lch(38.21, 53.53, 25.88°)
OKLab	oklab(48.6% 0.1422 0.0553)
OKLCH	oklch(48.6% 0.153 21.3)
XYZ	xyz(17.0177, 10.2039, 4.6871)
Luminance	0.1020 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42F37 #2FA49C

analogous

#A42F72 #A42F37 #A4622F

triadic

#A42F37 #37A42F #2F37A4

tetradic

#A42F37 #72A42F #2FA49C #622FA4

square

#A42F37 #72A42F #2FA49C #622FA4

split-complementary

#A42F37 #2FA462 #2F72A4

monochromatic

#451417 #742127 #A42F37 #CA464F #D8767C

Accessibility & contrast

On white

6.91

#A42F37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#A42F37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A42F37

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42F37	#FFFFFF	#000000	##FFFFFF
##A42F37	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4A36

Deuteranopia (green-blind)

#6D6334

Tritanopia (blue-blind)

#B40A33

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a42f37;
/* rgb */ color: rgb(164, 47, 55);
/* oklch */ color: oklch(48.6% 0.153 21.3);

Tailwind

colors: {
  custom: {
    50: '#c6706d',
    500: '#a42f37',
    950: '#000000',
  },
}

SCSS

$custom: #a42f37;
$custom-light: #c6706d;
$custom-dark: #000000;

JSON

{
  "hex": "#a42f37",
  "rgb": {
    "r": 164,
    "g": 47,
    "b": 55
  },
  "hsl": {
    "h": 355.897,
    "s": 55.45,
    "l": 41.373
  },
  "oklch": {
    "l": 0.48595,
    "c": 0.15254,
    "h": 21.3
  },
  "luminance": 0.10201
}

Semantic roles & 50–950 ramp

primary

#A42F37

secondary

#6FC0BA

accent

#DFD549

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A42F37

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

Preview Lab → · Contrast checker → · Palette generator →