#A42539#A42539

#A42539 is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.7% C 0.162 H 17.7°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#A42539
RGB	rgb(164, 37, 57)
HSL	hsl(351, 63%, 39%)
HSV	hsv(351, 77%, 64%)
CMYK	cmyk(0%, 77.4%, 65.2%, 35.7%)
CIE-LAB	lab(36.95, 51.86, 20.52)
CIE-LCH	lch(36.95, 55.77, 21.59°)
OKLab	oklab(47.68% 0.1544 0.0491)
OKLCH	oklch(47.68% 0.162 17.7)
XYZ	xyz(16.7117, 9.5136, 4.8264)
Luminance	0.0951 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42539 #25A490

analogous

#A42579 #A42539 #A45125

triadic

#A42539 #39A425 #2539A4

tetradic

#A42539 #79A425 #25A490 #5125A4

square

#A42539 #79A425 #25A490 #5125A4

split-complementary

#A42539 #25A451 #2579A4

monochromatic

#400E16 #721A28 #A42539 #D1354D #DD6779

Accessibility & contrast

On white

7.24

#A42539 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#A42539 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42539

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42539	#FFFFFF	#000000	##FFFFFF
##A42539	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4639

Deuteranopia (green-blind)

#6A6135

Tritanopia (blue-blind)

#B4002E

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a42539;
/* rgb */ color: rgb(164, 37, 57);
/* oklch */ color: oklch(47.7% 0.162 17.7);

Tailwind

colors: {
  custom: {
    50: '#c66b6f',
    500: '#a42539',
    950: '#000000',
  },
}

SCSS

$custom: #a42539;
$custom-light: #c66b6f;
$custom-dark: #000000;

JSON

{
  "hex": "#a42539",
  "rgb": {
    "r": 164,
    "g": 37,
    "b": 57
  },
  "hsl": {
    "h": 350.551,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.47677,
    "c": 0.16199,
    "h": 17.7
  },
  "luminance": 0.09511
}

Semantic roles & 50–950 ramp

primary

#A42539

secondary

#62C2B3

accent

#E6CC42

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140707

muted

#837A7A

Preview Lab

Preview with #A42539

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

Preview Lab → · Contrast checker → · Palette generator →