#A42839#A42839

#A42839 is a mid, vivid red. Relative luminance 0.097; OKLCH L 47.9% C 0.159 H 18.4°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#A42839
RGB	rgb(164, 40, 57)
HSL	hsl(352, 61%, 40%)
HSV	hsv(352, 76%, 64%)
CMYK	cmyk(0%, 75.6%, 65.2%, 35.7%)
CIE-LAB	lab(37.31, 50.86, 20.98)
CIE-LCH	lch(37.31, 55.01, 22.42°)
OKLab	oklab(47.94% 0.1512 0.0502)
OKLCH	oklch(47.94% 0.159 18.4)
XYZ	xyz(16.8089, 9.7080, 4.8588)
Luminance	0.0971 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42839 #28A493

analogous

#A42877 #A42839 #A45528

triadic

#A42839 #39A428 #2839A4

tetradic

#A42839 #77A428 #28A493 #5528A4

square

#A42839 #77A428 #28A493 #5528A4

split-complementary

#A42839 #28A455 #2877A4

monochromatic

#421017 #731C28 #A42839 #CF3A4F #DB6B7B

Accessibility & contrast

On white

7.14

#A42839 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#A42839 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42839

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42839	#FFFFFF	#000000	##FFFFFF
##A42839	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4739

Deuteranopia (green-blind)

#6A6135

Tritanopia (blue-blind)

#B4002F

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a42839;
/* rgb */ color: rgb(164, 40, 57);
/* oklch */ color: oklch(47.9% 0.159 18.4);

Tailwind

colors: {
  custom: {
    50: '#c66d6f',
    500: '#a42839',
    950: '#000000',
  },
}

SCSS

$custom: #a42839;
$custom-light: #c66d6f;
$custom-dark: #000000;

JSON

{
  "hex": "#a42839",
  "rgb": {
    "r": 164,
    "g": 40,
    "b": 57
  },
  "hsl": {
    "h": 351.774,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.47942,
    "c": 0.15926,
    "h": 18.4
  },
  "luminance": 0.09706
}

Semantic roles & 50–950 ramp

primary

#A42839

secondary

#66C1B5

accent

#E4CE44

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A42839

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

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