#A42731#A42731

#A42731 is a mid, vivid red. Relative luminance 0.096; OKLCH L 47.7% C 0.161 H 21.8°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#A42731
RGB	rgb(164, 39, 49)
HSL	hsl(355, 62%, 40%)
HSV	hsv(355, 76%, 64%)
CMYK	cmyk(0%, 76.2%, 70.1%, 35.7%)
CIE-LAB	lab(37.06, 50.75, 25.67)
CIE-LCH	lch(37.06, 56.87, 26.83°)
OKLab	oklab(47.71% 0.1491 0.0596)
OKLCH	oklch(47.71% 0.161 21.8)
XYZ	xyz(16.5916, 9.5678, 3.8783)
Luminance	0.0956 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42731 #27A49A

analogous

#A42770 #A42731 #A45C27

triadic

#A42731 #31A427 #2731A4

tetradic

#A42731 #70A427 #27A49A #5C27A4

square

#A42731 #70A427 #27A49A #5C27A4

split-complementary

#A42731 #27A45C #2770A4

monochromatic

#410F13 #731B22 #A42731 #D03845 #DC6A73

Accessibility & contrast

On white

7.21

#A42731 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#A42731 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42731

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42731	#FFFFFF	#000000	##FFFFFF
##A42731	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4630

Deuteranopia (green-blind)

#6B612D

Tritanopia (blue-blind)

#B4002C

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a42731;
/* rgb */ color: rgb(164, 39, 49);
/* oklch */ color: oklch(47.7% 0.161 21.8);

Tailwind

colors: {
  custom: {
    50: '#c76c69',
    500: '#a42731',
    950: '#000000',
  },
}

SCSS

$custom: #a42731;
$custom-light: #c76c69;
$custom-dark: #000000;

JSON

{
  "hex": "#a42731",
  "rgb": {
    "r": 164,
    "g": 39,
    "b": 49
  },
  "hsl": {
    "h": 355.2,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47707,
    "c": 0.16057,
    "h": 21.8
  },
  "luminance": 0.09565
}

Semantic roles & 50–950 ramp

primary

#A42731

secondary

#65C2BA

accent

#E5D843

background

#FDF6F6

surface

#FAECEB

border

#D3C7C6

text

#140706

muted

#837A7A

Preview Lab

Preview with #A42731

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

Preview Lab → · Contrast checker → · Palette generator →