#A42B37#A42B37

#A42B37 is a mid, vivid red. Relative luminance 0.099; OKLCH L 48.2% C 0.156 H 20.1°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#A42B37
RGB	rgb(164, 43, 55)
HSL	hsl(354, 58%, 41%)
HSV	hsv(354, 74%, 64%)
CMYK	cmyk(0%, 73.8%, 66.5%, 35.7%)
CIE-LAB	lab(37.66, 49.67, 22.68)
CIE-LCH	lch(37.66, 54.61, 24.54°)
OKLab	oklab(48.19% 0.147 0.0538)
OKLCH	oklch(48.19% 0.156 20.1)
XYZ	xyz(16.8651, 9.8986, 4.6363)
Luminance	0.0990 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42B37 #2BA498

analogous

#A42B73 #A42B37 #A45C2B

triadic

#A42B37 #37A42B #2B37A4

tetradic

#A42B37 #73A42B #2BA498 #5C2BA4

square

#A42B37 #73A42B #2BA498 #5C2BA4

split-complementary

#A42B37 #2BA45C #2B73A4

monochromatic

#431216 #741E27 #A42B37 #CD3F4D #D9707A

Accessibility & contrast

On white

7.05

#A42B37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#A42B37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42B37

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42B37	#FFFFFF	#000000	##FFFFFF
##A42B37	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D4837

Deuteranopia (green-blind)

#6B6233

Tritanopia (blue-blind)

#B40030

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a42b37;
/* rgb */ color: rgb(164, 43, 55);
/* oklch */ color: oklch(48.2% 0.156 20.1);

Tailwind

colors: {
  custom: {
    50: '#c66e6d',
    500: '#a42b37',
    950: '#000000',
  },
}

SCSS

$custom: #a42b37;
$custom-light: #c66e6d;
$custom-dark: #000000;

JSON

{
  "hex": "#a42b37",
  "rgb": {
    "r": 164,
    "g": 43,
    "b": 55
  },
  "hsl": {
    "h": 354.05,
    "s": 58.454,
    "l": 40.588
  },
  "oklch": {
    "l": 0.48189,
    "c": 0.15648,
    "h": 20.1
  },
  "luminance": 0.09896
}

Semantic roles & 50–950 ramp

primary

#A42B37

secondary

#6AC1B8

accent

#E2D246

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A42B37

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

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