#A43037#A43037

#A43037 is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.7% C 0.152 H 21.6°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#A43037
RGB	rgb(164, 48, 55)
HSL	hsl(356, 55%, 42%)
HSV	hsv(356, 71%, 64%)
CMYK	cmyk(0%, 70.7%, 66.5%, 35.7%)
CIE-LAB	lab(38.35, 47.77, 23.54)
CIE-LCH	lch(38.35, 53.26, 26.24°)
OKLab	oklab(48.7% 0.1409 0.0557)
OKLCH	oklch(48.7% 0.152 21.6)
XYZ	xyz(17.0582, 10.2847, 4.7006)
Luminance	0.1028 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43037 #30A49D

analogous

#A43071 #A43037 #A46330

triadic

#A43037 #37A430 #3037A4

tetradic

#A43037 #71A430 #30A49D #6330A4

square

#A43037 #71A430 #30A49D #6330A4

split-complementary

#A43037 #30A463 #3071A4

monochromatic

#451417 #752227 #A43037 #C94850 #D7777D

Accessibility & contrast

On white

6.87

#A43037 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#A43037 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43037

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43037	#FFFFFF	#000000	##FFFFFF
##A43037	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B36

Deuteranopia (green-blind)

#6D6334

Tritanopia (blue-blind)

#B40D34

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a43037;
/* rgb */ color: rgb(164, 48, 55);
/* oklch */ color: oklch(48.7% 0.152 21.6);

Tailwind

colors: {
  custom: {
    50: '#c6706d',
    500: '#a43037',
    950: '#000000',
  },
}

SCSS

$custom: #a43037;
$custom-light: #c6706d;
$custom-dark: #000000;

JSON

{
  "hex": "#a43037",
  "rgb": {
    "r": 164,
    "g": 48,
    "b": 55
  },
  "hsl": {
    "h": 356.379,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48702,
    "c": 0.15152,
    "h": 21.6
  },
  "luminance": 0.10282
}

Semantic roles & 50–950 ramp

primary

#A43037

secondary

#70BFBB

accent

#DED54A

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A43037

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

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