#A42A37#A42A37

#A42A37 is a mid, vivid red. Relative luminance 0.098; OKLCH L 48.1% C 0.157 H 19.8°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#A42A37
RGB	rgb(164, 42, 55)
HSL	hsl(354, 59%, 40%)
HSV	hsv(354, 74%, 64%)
CMYK	cmyk(0%, 74.4%, 66.5%, 35.7%)
CIE-LAB	lab(37.53, 50.03, 22.51)
CIE-LCH	lch(37.53, 54.87, 24.23°)
OKLab	oklab(48.09% 0.1481 0.0534)
OKLCH	oklch(48.09% 0.157 19.8)
XYZ	xyz(16.8292, 9.8268, 4.6243)
Luminance	0.0982 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42A37 #2AA497

analogous

#A42A74 #A42A37 #A45A2A

triadic

#A42A37 #37A42A #2A37A4

tetradic

#A42A37 #74A42A #2AA497 #5A2AA4

square

#A42A37 #74A42A #2AA497 #5A2AA4

split-complementary

#A42A37 #2AA45A #2A74A4

monochromatic

#431116 #731E27 #A42A37 #CD3E4D #DA6E7A

Accessibility & contrast

On white

7.08

#A42A37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#A42A37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42A37

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42A37	#FFFFFF	#000000	##FFFFFF
##A42A37	1.00	7.08	2.96	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4837

Deuteranopia (green-blind)

#6B6233

Tritanopia (blue-blind)

#B40030

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a42a37;
/* rgb */ color: rgb(164, 42, 55);
/* oklch */ color: oklch(48.1% 0.157 19.8);

Tailwind

colors: {
  custom: {
    50: '#c66d6d',
    500: '#a42a37',
    950: '#000000',
  },
}

SCSS

$custom: #a42a37;
$custom-light: #c66d6d;
$custom-dark: #000000;

JSON

{
  "hex": "#a42a37",
  "rgb": {
    "r": 164,
    "g": 42,
    "b": 55
  },
  "hsl": {
    "h": 353.607,
    "s": 59.223,
    "l": 40.392
  },
  "oklch": {
    "l": 0.48092,
    "c": 0.15745,
    "h": 19.8
  },
  "luminance": 0.09824
}

Semantic roles & 50–950 ramp

primary

#A42A37

secondary

#69C1B8

accent

#E2D245

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A42A37

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

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