#A42728#A42728

#A42728 is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.6% C 0.161 H 25.5°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX#A42728
RGBrgb(164, 39, 40)
HSLhsl(360, 62%, 40%)
HSVhsv(360, 76%, 64%)
CMYKcmyk(0%, 76.2%, 75.6%, 35.7%)
CIE-LABlab(36.93, 50.33, 31.01)
CIE-LCHlch(36.93, 59.12, 31.64°)
OKLaboklab(47.57% 0.1458 0.0695)
OKLCHoklch(47.57% 0.161 25.5)
XYZxyz(16.4203, 9.4993, 2.9760)
Luminance0.0950 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A42728 #27A4A3
analogous
#A42767 #A42728 #A46527
triadic
#A42728 #28A427 #2728A4
tetradic
#A42728 #67A427 #27A4A3 #6527A4
square
#A42728 #67A427 #27A4A3 #6527A4
split-complementary
#A42728 #27A465 #2767A4
monochromatic
#410F10 #731B1C #A42728 #D0383A #DC6A6B

Accessibility & contrast

On white

7.24
#A42728 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.90
#A42728 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42728
7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A42728#FFFFFF#000000##FFFFFF
##A427281.007.242.907.24
#FFFFFF7.241.0021.001.00
#0000002.9021.001.0021.00
##FFFFFF7.241.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4D4627
Deuteranopia (green-blind)
#6C6123
Tritanopia (blue-blind)
#B50029
Achromatopsia (no color)
#575757

Design tokens & code

CSS
--color: #a42728;
/* rgb */ color: rgb(164, 39, 40);
/* oklch */ color: oklch(47.6% 0.161 25.5);
Tailwind
colors: {
  custom: {
    50: '#c76c62',
    500: '#a42728',
    950: '#000000',
  },
}
SCSS
$custom: #a42728;
$custom-light: #c76c62;
$custom-dark: #000000;
JSON
{
  "hex": "#a42728",
  "rgb": {
    "r": 164,
    "g": 39,
    "b": 40
  },
  "hsl": {
    "h": 359.52,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.47572,
    "c": 0.16147,
    "h": 25.5
  },
  "luminance": 0.09497
}

Semantic roles & 50–950 ramp

primary
#A42728
secondary
#65C2C1
accent
#E5E343
background
#FDF6F5
surface
#FAECEA
border
#D3C7C6
text
#150705
muted
#837A79

Preview Lab

Preview with #A42728

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

Preview Lab → · Contrast checker → · Palette generator →

#A42728 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva