#A43828#A43828

#A43828 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.4% C 0.146 H 31.1°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#A43828
RGB	rgb(164, 56, 40)
HSL	hsl(8, 61%, 40%)
HSV	hsv(8, 76%, 64%)
CMYK	cmyk(0%, 65.9%, 75.6%, 35.7%)
CIE-LAB	lab(39.37, 43.64, 33.71)
CIE-LCH	lch(39.37, 55.15, 37.69°)
OKLab	oklab(49.4% 0.1247 0.0754)
OKLCH	oklch(49.4% 0.146 31.1)
XYZ	xyz(17.1089, 10.8765, 3.2056)
Luminance	0.1087 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A43828 #2894A4

analogous

#A42856 #A43828 #A47628

triadic

#A43828 #28A438 #3828A4

tetradic

#A43828 #56A428 #2894A4 #7628A4

square

#A43828 #56A428 #2894A4 #7628A4

split-complementary

#A43828 #28A476 #2856A4

monochromatic

#421610 #73271C #A43828 #CF4D3A #DB7A6B

Accessibility & contrast

On white

6.61

#A43828 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#A43828 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A43828

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A43828	#FFFFFF	#000000	##FFFFFF
##A43828	1.00	6.61	3.17	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E26

Deuteranopia (green-blind)

#716624

Tritanopia (blue-blind)

#B51B35

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a43828;
/* rgb */ color: rgb(164, 56, 40);
/* oklch */ color: oklch(49.4% 0.146 31.1);

Tailwind

colors: {
  custom: {
    50: '#c77463',
    500: '#a43828',
    950: '#000000',
  },
}

SCSS

$custom: #a43828;
$custom-light: #c77463;
$custom-dark: #000000;

JSON

{
  "hex": "#a43828",
  "rgb": {
    "r": 164,
    "g": 56,
    "b": 40
  },
  "hsl": {
    "h": 7.742,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.494,
    "c": 0.14573,
    "h": 31.1
  },
  "luminance": 0.10874
}

Semantic roles & 50–950 ramp

primary

#A43828

secondary

#66B6C1

accent

#CFE444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140905

muted

#837B79

Preview Lab

Preview with #A43828

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

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