#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
RGB	rgb(164, 36, 33)
HSL	hsl(1, 66%, 39%)
HSV	hsv(1, 80%, 64%)
CMYK	cmyk(0%, 78%, 79.9%, 35.7%)
CIE-LAB	lab(36.49, 51.06, 34.64)
CIE-LCH	lch(36.49, 61.70, 34.15°)
OKLab	oklab(47.22% 0.1465 0.0754)
OKLCH	oklch(47.22% 0.165 27.2)
XYZ	xyz(16.2172, 9.2667, 2.3733)
Luminance	0.0926 (WCAG relative)
Temperature	warm
Family	red

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
##A42421	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

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 →