#A4283B#A4283B

#A4283B is a mid, vivid red. Relative luminance 0.097; OKLCH L 48.0% C 0.159 H 17.4°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#A4283B
RGB	rgb(164, 40, 59)
HSL	hsl(351, 61%, 40%)
HSV	hsv(351, 76%, 64%)
CMYK	cmyk(0%, 75.6%, 64%, 35.7%)
CIE-LAB	lab(37.35, 50.98, 19.76)
CIE-LCH	lch(37.35, 54.67, 21.19°)
OKLab	oklab(47.98% 0.152 0.0476)
OKLCH	oklch(47.98% 0.159 17.4)
XYZ	xyz(16.8598, 9.7284, 5.1268)
Luminance	0.0973 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4283B #28A491

analogous

#A42879 #A4283B #A45328

triadic

#A4283B #3BA428 #283BA4

tetradic

#A4283B #79A428 #28A491 #5328A4

square

#A4283B #79A428 #28A491 #5328A4

split-complementary

#A4283B #28A453 #2879A4

monochromatic

#421018 #731C29 #A4283B #CF3A51 #DB6B7D

Accessibility & contrast

On white

7.13

#A4283B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#A4283B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A4283B

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4283B	#FFFFFF	#000000	##FFFFFF
##A4283B	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B473B

Deuteranopia (green-blind)

#6A6138

Tritanopia (blue-blind)

#B40030

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a4283b;
/* rgb */ color: rgb(164, 40, 59);
/* oklch */ color: oklch(48.0% 0.159 17.4);

Tailwind

colors: {
  custom: {
    50: '#c66d70',
    500: '#a4283b',
    950: '#000000',
  },
}

SCSS

$custom: #a4283b;
$custom-light: #c66d70;
$custom-dark: #000000;

JSON

{
  "hex": "#a4283b",
  "rgb": {
    "r": 164,
    "g": 40,
    "b": 59
  },
  "hsl": {
    "h": 350.806,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.47982,
    "c": 0.15923,
    "h": 17.4
  },
  "luminance": 0.09726
}

Semantic roles & 50–950 ramp

primary

#A4283B

secondary

#66C1B4

accent

#E4CB44

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A4283B

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

Preview Lab → · Contrast checker → · Palette generator →