#A43428#A43428

#A43428 is a mid, vivid red. Relative luminance 0.105; OKLCH L 48.9% C 0.150 H 29.6°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#A43428
RGB	rgb(164, 52, 40)
HSL	hsl(6, 61%, 40%)
HSV	hsv(6, 76%, 64%)
CMYK	cmyk(0%, 68.3%, 75.6%, 35.7%)
CIE-LAB	lab(38.73, 45.37, 33.01)
CIE-LCH	lch(38.73, 56.11, 36.04°)
OKLab	oklab(48.92% 0.1301 0.0739)
OKLCH	oklch(48.92% 0.15 29.6)
XYZ	xyz(16.9227, 10.5042, 3.1435)
Luminance	0.1050 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43428 #2898A4

analogous

#A4285A #A43428 #A47228

triadic

#A43428 #28A434 #3428A4

tetradic

#A43428 #5AA428 #2898A4 #7228A4

square

#A43428 #5AA428 #2898A4 #7228A4

split-complementary

#A43428 #28A472 #285AA4

monochromatic

#421510 #73241C #A43428 #CF493A #DB766B

Accessibility & contrast

On white

6.77

#A43428 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#A43428 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43428

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43428	#FFFFFF	#000000	##FFFFFF
##A43428	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544C26

Deuteranopia (green-blind)

#706424

Tritanopia (blue-blind)

#B51232

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a43428;
/* rgb */ color: rgb(164, 52, 40);
/* oklch */ color: oklch(48.9% 0.150 29.6);

Tailwind

colors: {
  custom: {
    50: '#c77263',
    500: '#a43428',
    950: '#000000',
  },
}

SCSS

$custom: #a43428;
$custom-light: #c77263;
$custom-dark: #000000;

JSON

{
  "hex": "#a43428",
  "rgb": {
    "r": 164,
    "g": 52,
    "b": 40
  },
  "hsl": {
    "h": 5.806,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.4892,
    "c": 0.14962,
    "h": 29.6
  },
  "luminance": 0.10502
}

Semantic roles & 50–950 ramp

primary

#A43428

secondary

#66B9C1

accent

#D4E444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140805

muted

#837B79

Preview Lab

Preview with #A43428

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

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