#A4283A#A4283A

#A4283A is a mid, vivid red. Relative luminance 0.097; OKLCH L 48.0% C 0.159 H 17.9°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#A4283A
RGB	rgb(164, 40, 58)
HSL	hsl(351, 61%, 40%)
HSV	hsv(351, 76%, 64%)
CMYK	cmyk(0%, 75.6%, 64.6%, 35.7%)
CIE-LAB	lab(37.33, 50.92, 20.37)
CIE-LCH	lch(37.33, 54.84, 21.81°)
OKLab	oklab(47.96% 0.1516 0.0489)
OKLCH	oklch(47.96% 0.159 17.9)
XYZ	xyz(16.8341, 9.7181, 4.9915)
Luminance	0.0972 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4283A #28A492

analogous

#A42878 #A4283A #A45428

triadic

#A4283A #3AA428 #283AA4

tetradic

#A4283A #78A428 #28A492 #5428A4

square

#A4283A #78A428 #28A492 #5428A4

split-complementary

#A4283A #28A454 #2878A4

monochromatic

#421017 #731C29 #A4283A #CF3A50 #DB6B7C

Accessibility & contrast

On white

7.14

#A4283A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#A4283A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A4283A

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4283A	#FFFFFF	#000000	##FFFFFF
##A4283A	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)

#4B473A

Deuteranopia (green-blind)

#6A6136

Tritanopia (blue-blind)

#B40030

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a4283a;
/* rgb */ color: rgb(164, 40, 58);
/* oklch */ color: oklch(48.0% 0.159 17.9);

Tailwind

colors: {
  custom: {
    50: '#c66d70',
    500: '#a4283a',
    950: '#000000',
  },
}

SCSS

$custom: #a4283a;
$custom-light: #c66d70;
$custom-dark: #000000;

JSON

{
  "hex": "#a4283a",
  "rgb": {
    "r": 164,
    "g": 40,
    "b": 58
  },
  "hsl": {
    "h": 351.29,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.47962,
    "c": 0.15924,
    "h": 17.9
  },
  "luminance": 0.09716
}

Semantic roles & 50–950 ramp

primary

#A4283A

secondary

#66C1B4

accent

#E4CD44

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A4283A

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

Preview Lab → · Contrast checker → · Palette generator →