#A3283B#A3283B

#A3283B is a mid, vivid red. Relative luminance 0.096; OKLCH L 47.8% C 0.158 H 17.3°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#A3283B
RGB	rgb(163, 40, 59)
HSL	hsl(351, 61%, 40%)
HSV	hsv(351, 75%, 64%)
CMYK	cmyk(0%, 75.5%, 63.8%, 36.1%)
CIE-LAB	lab(37.16, 50.67, 19.47)
CIE-LCH	lch(37.16, 54.28, 21.02°)
OKLab	oklab(47.8% 0.1511 0.047)
OKLCH	oklch(47.8% 0.158 17.3)
XYZ	xyz(16.6542, 9.6223, 5.1172)
Luminance	0.0962 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3283B #28A390

analogous

#A32878 #A3283B #A35328

triadic

#A3283B #3BA328 #283BA3

tetradic

#A3283B #78A328 #28A390 #5328A3

square

#A3283B #78A328 #28A390 #5328A3

split-complementary

#A3283B #28A353 #2878A3

monochromatic

#411017 #721C29 #A3283B #CF3A51 #DB6B7C

Accessibility & contrast

On white

7.18

#A3283B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#A3283B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A3283B

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3283B	#FFFFFF	#000000	##FFFFFF
##A3283B	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A473B

Deuteranopia (green-blind)

#6A6138

Tritanopia (blue-blind)

#B30030

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a3283b;
/* rgb */ color: rgb(163, 40, 59);
/* oklch */ color: oklch(47.8% 0.158 17.3);

Tailwind

colors: {
  custom: {
    50: '#c56d70',
    500: '#a3283b',
    950: '#000000',
  },
}

SCSS

$custom: #a3283b;
$custom-light: #c56d70;
$custom-dark: #000000;

JSON

{
  "hex": "#a3283b",
  "rgb": {
    "r": 163,
    "g": 40,
    "b": 59
  },
  "hsl": {
    "h": 350.732,
    "s": 60.591,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47803,
    "c": 0.15823,
    "h": 17.3
  },
  "luminance": 0.0962
}

Semantic roles & 50–950 ramp

primary

#A3283B

secondary

#66C1B3

accent

#E4CB44

background

#FDF6F6

surface

#FAECEC

border

#D3C7C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A3283B

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

Preview Lab → · Contrast checker → · Palette generator →