#A42733#A42733

#A42733 is a mid, vivid red. Relative luminance 0.096; OKLCH L 47.7% C 0.160 H 20.9°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#A42733
RGB	rgb(164, 39, 51)
HSL	hsl(354, 62%, 40%)
HSV	hsv(354, 76%, 64%)
CMYK	cmyk(0%, 76.2%, 68.9%, 35.7%)
CIE-LAB	lab(37.09, 50.86, 24.46)
CIE-LCH	lch(37.09, 56.43, 25.69°)
OKLab	oklab(47.74% 0.1499 0.0572)
OKLCH	oklch(47.74% 0.16 20.9)
XYZ	xyz(16.6347, 9.5851, 4.1055)
Luminance	0.0958 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42733 #27A498

analogous

#A42772 #A42733 #A45A27

triadic

#A42733 #33A427 #2733A4

tetradic

#A42733 #72A427 #27A498 #5A27A4

square

#A42733 #72A427 #27A498 #5A27A4

split-complementary

#A42733 #27A45A #2772A4

monochromatic

#410F14 #731B24 #A42733 #D03847 #DC6A75

Accessibility & contrast

On white

7.20

#A42733 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#A42733 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42733

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42733	#FFFFFF	#000000	##FFFFFF
##A42733	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4632

Deuteranopia (green-blind)

#6B612F

Tritanopia (blue-blind)

#B4002D

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a42733;
/* rgb */ color: rgb(164, 39, 51);
/* oklch */ color: oklch(47.7% 0.160 20.9);

Tailwind

colors: {
  custom: {
    50: '#c76c6a',
    500: '#a42733',
    950: '#000000',
  },
}

SCSS

$custom: #a42733;
$custom-light: #c76c6a;
$custom-dark: #000000;

JSON

{
  "hex": "#a42733",
  "rgb": {
    "r": 164,
    "g": 39,
    "b": 51
  },
  "hsl": {
    "h": 354.24,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47741,
    "c": 0.16043,
    "h": 20.9
  },
  "luminance": 0.09583
}

Semantic roles & 50–950 ramp

primary

#A42733

secondary

#65C2B9

accent

#E5D543

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#140706

muted

#837A7A

Preview Lab

Preview with #A42733

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

Preview Lab → · Contrast checker → · Palette generator →