#A42521#A42521

#A42521 is a mid, vivid red. Relative luminance 0.093; OKLCH L 47.3% C 0.164 H 27.5°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#A42521
RGB	rgb(164, 37, 33)
HSL	hsl(2, 66%, 39%)
HSV	hsv(2, 80%, 64%)
CMYK	cmyk(0%, 77.4%, 79.9%, 35.7%)
CIE-LAB	lab(36.61, 50.74, 34.76)
CIE-LCH	lch(36.61, 61.50, 34.41°)
OKLab	oklab(47.31% 0.1455 0.0757)
OKLCH	oklch(47.31% 0.164 27.5)
XYZ	xyz(16.2479, 9.3280, 2.3835)
Luminance	0.0932 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42521 #21A0A4

analogous

#A4215E #A42521 #A46621

triadic

#A42521 #21A425 #2521A4

tetradic

#A42521 #5EA421 #21A0A4 #6621A4

square

#A42521 #5EA421 #21A0A4 #6621A4

split-complementary

#A42521 #21A466 #215EA4

monochromatic

#3E0E0C #711A17 #A42521 #D5322D #DF6460

Accessibility & contrast

On white

7.33

#A42521 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#A42521 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42521

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42521	#FFFFFF	#000000	##FFFFFF
##A42521	1.00	7.33	2.87	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C441F

Deuteranopia (green-blind)

#6C601B

Tritanopia (blue-blind)

#B50026

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #a42521;
/* rgb */ color: rgb(164, 37, 33);
/* oklch */ color: oklch(47.3% 0.164 27.5);

Tailwind

colors: {
  custom: {
    50: '#c86b5d',
    500: '#a42521',
    950: '#000000',
  },
}

SCSS

$custom: #a42521;
$custom-light: #c86b5d;
$custom-dark: #000000;

JSON

{
  "hex": "#a42521",
  "rgb": {
    "r": 164,
    "g": 37,
    "b": 33
  },
  "hsl": {
    "h": 1.832,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47308,
    "c": 0.164,
    "h": 27.5
  },
  "luminance": 0.09325
}

Semantic roles & 50–950 ramp

primary

#A42521

secondary

#5DC1C4

accent

#E4E93E

background

#FDF6F5

surface

#FAECE9

border

#D3C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A42521

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

Preview Lab → · Contrast checker → · Palette generator →