#A42740#A42740

#A42740 is a mid, vivid red. Relative luminance 0.097; OKLCH L 48.0% C 0.160 H 14.7°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#A42740
RGB	rgb(164, 39, 64)
HSL	hsl(348, 62%, 40%)
HSV	hsv(348, 76%, 64%)
CMYK	cmyk(0%, 76.2%, 61%, 35.7%)
CIE-LAB	lab(37.33, 51.64, 16.56)
CIE-LCH	lch(37.33, 54.23, 17.78°)
OKLab	oklab(48% 0.1551 0.0406)
OKLCH	oklch(48% 0.16 14.7)
XYZ	xyz(16.9625, 9.7162, 5.8317)
Luminance	0.0971 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42740 #27A48B

analogous

#A4277F #A42740 #A44D27

triadic

#A42740 #40A427 #2740A4

tetradic

#A42740 #7FA427 #27A48B #4D27A4

square

#A42740 #7FA427 #27A48B #4D27A4

split-complementary

#A42740 #27A44D #277FA4

monochromatic

#410F19 #731B2D #A42740 #D03857 #DC6A81

Accessibility & contrast

On white

7.14

#A42740 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#A42740 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42740

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42740	#FFFFFF	#000000	##FFFFFF
##A42740	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)

#494740

Deuteranopia (green-blind)

#69613D

Tritanopia (blue-blind)

#B40032

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a42740;
/* rgb */ color: rgb(164, 39, 64);
/* oklch */ color: oklch(48.0% 0.160 14.7);

Tailwind

colors: {
  custom: {
    50: '#c66c74',
    500: '#a42740',
    950: '#000000',
  },
}

SCSS

$custom: #a42740;
$custom-light: #c66c74;
$custom-dark: #000000;

JSON

{
  "hex": "#a42740",
  "rgb": {
    "r": 164,
    "g": 39,
    "b": 64
  },
  "hsl": {
    "h": 348,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47998,
    "c": 0.16028,
    "h": 14.7
  },
  "luminance": 0.09714
}

Semantic roles & 50–950 ramp

primary

#A42740

secondary

#65C2AF

accent

#E5C443

background

#FDF6F7

surface

#FAECED

border

#D3C7C8

text

#140808

muted

#837B7B

Preview Lab

Preview with #A42740

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

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