#A42421#A42421

#A42421 is a mid, vivid red. Relative luminance 0.093; OKLCH L 47.2% C 0.165 H 27.2°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX#A42421
RGBrgb(164, 36, 33)
HSLhsl(1, 66%, 39%)
HSVhsv(1, 80%, 64%)
CMYKcmyk(0%, 78%, 79.9%, 35.7%)
CIE-LABlab(36.49, 51.06, 34.64)
CIE-LCHlch(36.49, 61.70, 34.15°)
OKLaboklab(47.22% 0.1465 0.0754)
OKLCHoklch(47.22% 0.165 27.2)
XYZxyz(16.2172, 9.2667, 2.3733)
Luminance0.0926 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A42421 #21A1A4
analogous
#A4215F #A42421 #A46521
triadic
#A42421 #21A424 #2421A4
tetradic
#A42421 #5FA421 #21A1A4 #6521A4
square
#A42421 #5FA421 #21A1A4 #6521A4
split-complementary
#A42421 #21A465 #215FA4
monochromatic
#3E0E0C #711917 #A42421 #D5312D #DF6360

Accessibility & contrast

On white

7.36
#A42421 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.85
#A42421 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42421
7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A42421#FFFFFF#000000##FFFFFF
##A424211.007.362.857.36
#FFFFFF7.361.0021.001.00
#0000002.8521.001.0021.00
##FFFFFF7.361.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4C441F
Deuteranopia (green-blind)
#6B601B
Tritanopia (blue-blind)
#B50025
Achromatopsia (no color)
#565656

Design tokens & code

CSS
--color: #a42421;
/* rgb */ color: rgb(164, 36, 33);
/* oklch */ color: oklch(47.2% 0.165 27.2);
Tailwind
colors: {
  custom: {
    50: '#c86a5d',
    500: '#a42421',
    950: '#000000',
  },
}
SCSS
$custom: #a42421;
$custom-light: #c86a5d;
$custom-dark: #000000;
JSON
{
  "hex": "#a42421",
  "rgb": {
    "r": 164,
    "g": 36,
    "b": 33
  },
  "hsl": {
    "h": 1.374,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47222,
    "c": 0.16478,
    "h": 27.2
  },
  "luminance": 0.09264
}

Semantic roles & 50–950 ramp

primary
#A42421
secondary
#5DC2C4
accent
#E5E93E
background
#FDF6F5
surface
#FAECE9
border
#D3C7C5
text
#150704
muted
#837A79

Preview Lab

Preview with #A42421

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

Preview Lab → · Contrast checker → · Palette generator →

#A42421 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva