#A42838#A42838

#A42838 is a mid, vivid red. Relative luminance 0.097; OKLCH L 47.9% C 0.159 H 18.8°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#A42838
RGB	rgb(164, 40, 56)
HSL	hsl(352, 61%, 40%)
HSV	hsv(352, 76%, 64%)
CMYK	cmyk(0%, 75.6%, 65.9%, 35.7%)
CIE-LAB	lab(37.30, 50.80, 21.59)
CIE-LCH	lch(37.30, 55.19, 23.02°)
OKLab	oklab(47.92% 0.1508 0.0514)
OKLCH	oklch(47.92% 0.159 18.8)
XYZ	xyz(16.7842, 9.6981, 4.7288)
Luminance	0.0970 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42838 #28A494

analogous

#A42876 #A42838 #A45628

triadic

#A42838 #38A428 #2838A4

tetradic

#A42838 #76A428 #28A494 #5628A4

square

#A42838 #76A428 #28A494 #5628A4

split-complementary

#A42838 #28A456 #2876A4

monochromatic

#421016 #731C27 #A42838 #CF3A4D #DB6B7A

Accessibility & contrast

On white

7.14

#A42838 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#A42838 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42838

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42838	#FFFFFF	#000000	##FFFFFF
##A42838	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)

#4B4738

Deuteranopia (green-blind)

#6B6134

Tritanopia (blue-blind)

#B4002F

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a42838;
/* rgb */ color: rgb(164, 40, 56);
/* oklch */ color: oklch(47.9% 0.159 18.8);

Tailwind

colors: {
  custom: {
    50: '#c66d6e',
    500: '#a42838',
    950: '#000000',
  },
}

SCSS

$custom: #a42838;
$custom-light: #c66d6e;
$custom-dark: #000000;

JSON

{
  "hex": "#a42838",
  "rgb": {
    "r": 164,
    "g": 40,
    "b": 56
  },
  "hsl": {
    "h": 352.258,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.47923,
    "c": 0.15928,
    "h": 18.8
  },
  "luminance": 0.09696
}

Semantic roles & 50–950 ramp

primary

#A42838

secondary

#66C1B6

accent

#E4CF44

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A42838

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

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