#A42D21#A42D21

#A42D21 is a mid, vivid red. Relative luminance 0.099; OKLCH L 48.1% C 0.157 H 29.7°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#A42D21
RGB	rgb(164, 45, 33)
HSL	hsl(5, 66%, 39%)
HSV	hsv(5, 80%, 64%)
CMYK	cmyk(0%, 72.6%, 79.9%, 35.7%)
CIE-LAB	lab(37.63, 47.90, 35.80)
CIE-LCH	lch(37.63, 59.80, 36.77°)
OKLab	oklab(48.07% 0.1366 0.078)
OKLCH	oklch(48.07% 0.157 29.7)
XYZ	xyz(16.5247, 9.8816, 2.4758)
Luminance	0.0988 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42D21 #2198A4

analogous

#A42156 #A42D21 #A46E21

triadic

#A42D21 #21A42D #2D21A4

tetradic

#A42D21 #56A421 #2198A4 #6E21A4

square

#A42D21 #56A421 #2198A4 #6E21A4

split-complementary

#A42D21 #21A46E #2156A4

monochromatic

#3E110C #711F17 #A42D21 #D53D2D #DF6C60

Accessibility & contrast

On white

7.06

#A42D21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#A42D21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42D21

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42D21	#FFFFFF	#000000	##FFFFFF
##A42D21	1.00	7.06	2.98	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50481E

Deuteranopia (green-blind)

#6E621C

Tritanopia (blue-blind)

#B5002B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a42d21;
/* rgb */ color: rgb(164, 45, 33);
/* oklch */ color: oklch(48.1% 0.157 29.7);

Tailwind

colors: {
  custom: {
    50: '#c86e5d',
    500: '#a42d21',
    950: '#000000',
  },
}

SCSS

$custom: #a42d21;
$custom-light: #c86e5d;
$custom-dark: #000000;

JSON

{
  "hex": "#a42d21",
  "rgb": {
    "r": 164,
    "g": 45,
    "b": 33
  },
  "hsl": {
    "h": 5.496,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.4807,
    "c": 0.15728,
    "h": 29.7
  },
  "luminance": 0.09879
}

Semantic roles & 50–950 ramp

primary

#A42D21

secondary

#5DBAC4

accent

#DAE93E

background

#FDF6F5

surface

#FAECE9

border

#D3C7C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A42D21

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

Preview Lab → · Contrast checker → · Palette generator →