#A43728#A43728

#A43728 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.3% C 0.147 H 30.7°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#A43728
RGB	rgb(164, 55, 40)
HSL	hsl(7, 61%, 40%)
HSV	hsv(7, 76%, 64%)
CMYK	cmyk(0%, 66.5%, 75.6%, 35.7%)
CIE-LAB	lab(39.21, 44.08, 33.53)
CIE-LCH	lch(39.21, 55.39, 37.26°)
OKLab	oklab(49.28% 0.1261 0.075)
OKLCH	oklch(49.28% 0.147 30.7)
XYZ	xyz(17.0609, 10.7806, 3.1896)
Luminance	0.1078 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43728 #2895A4

analogous

#A42857 #A43728 #A47528

triadic

#A43728 #28A437 #3728A4

tetradic

#A43728 #57A428 #2895A4 #7528A4

square

#A43728 #57A428 #2895A4 #7528A4

split-complementary

#A43728 #28A475 #2857A4

monochromatic

#421610 #73271C #A43728 #CF4C3A #DB796B

Accessibility & contrast

On white

6.65

#A43728 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#A43728 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43728

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43728	#FFFFFF	#000000	##FFFFFF
##A43728	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564D26

Deuteranopia (green-blind)

#716524

Tritanopia (blue-blind)

#B51934

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a43728;
/* rgb */ color: rgb(164, 55, 40);
/* oklch */ color: oklch(49.3% 0.147 30.7);

Tailwind

colors: {
  custom: {
    50: '#c77463',
    500: '#a43728',
    950: '#000000',
  },
}

SCSS

$custom: #a43728;
$custom-light: #c77463;
$custom-dark: #000000;

JSON

{
  "hex": "#a43728",
  "rgb": {
    "r": 164,
    "g": 55,
    "b": 40
  },
  "hsl": {
    "h": 7.258,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.49277,
    "c": 0.14671,
    "h": 30.7
  },
  "luminance": 0.10778
}

Semantic roles & 50–950 ramp

primary

#A43728

secondary

#66B6C1

accent

#D1E444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140805

muted

#837B79

Preview Lab

Preview with #A43728

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

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