#A33839#A33839

#A33839 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.5% C 0.142 H 23.4°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#A33839
RGB	rgb(163, 56, 57)
HSL	hsl(359, 49%, 43%)
HSV	hsv(359, 66%, 64%)
CMYK	cmyk(0%, 65.6%, 65%, 36.1%)
CIE-LAB	lab(39.43, 44.20, 23.63)
CIE-LCH	lch(39.43, 50.12, 28.13°)
OKLab	oklab(49.49% 0.1301 0.0562)
OKLCH	oklch(49.49% 0.142 23.4)
XYZ	xyz(17.2587, 10.9127, 5.0677)
Luminance	0.1091 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33839 #38A3A2

analogous

#A3386E #A33839 #A36C38

triadic

#A33839 #39A338 #3839A3

tetradic

#A33839 #6EA338 #38A3A2 #6C38A3

square

#A33839 #6EA338 #38A3A2 #6C38A3

split-complementary

#A33839 #38A36C #386EA3

monochromatic

#481919 #752829 #A33839 #C45455 #D48282

Accessibility & contrast

On white

6.60

#A33839 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#A33839 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33839

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33839	#FFFFFF	#000000	##FFFFFF
##A33839	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544E38

Deuteranopia (green-blind)

#6F6536

Tritanopia (blue-blind)

#B32039

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a33839;
/* rgb */ color: rgb(163, 56, 57);
/* oklch */ color: oklch(49.5% 0.142 23.4);

Tailwind

colors: {
  custom: {
    50: '#c5746f',
    500: '#a33839',
    950: '#000000',
  },
}

SCSS

$custom: #a33839;
$custom-light: #c5746f;
$custom-dark: #000000;

JSON

{
  "hex": "#a33839",
  "rgb": {
    "r": 163,
    "g": 56,
    "b": 57
  },
  "hsl": {
    "h": 359.439,
    "s": 48.858,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4949,
    "c": 0.14172,
    "h": 23.4
  },
  "luminance": 0.1091
}

Semantic roles & 50–950 ramp

primary

#A33839

secondary

#79BDBD

accent

#D8D74F

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140907

muted

#827B7A

Preview Lab

Preview with #A33839

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

Preview Lab → · Contrast checker → · Palette generator →