#A42F28#A42F28

#A42F28 is a mid, vivid red. Relative luminance 0.101; OKLCH L 48.4% C 0.154 H 27.8°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#A42F28
RGB	rgb(164, 47, 40)
HSL	hsl(3, 61%, 40%)
HSV	hsv(3, 76%, 64%)
CMYK	cmyk(0%, 71.3%, 75.6%, 35.7%)
CIE-LAB	lab(37.99, 47.40, 32.19)
CIE-LCH	lch(37.99, 57.30, 34.18°)
OKLab	oklab(48.36% 0.1365 0.0721)
OKLCH	oklch(48.36% 0.154 27.8)
XYZ	xyz(16.7113, 10.0813, 3.0730)
Luminance	0.1008 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42F28 #289DA4

analogous

#A4285F #A42F28 #A46D28

triadic

#A42F28 #28A42F #2F28A4

tetradic

#A42F28 #5FA428 #289DA4 #6D28A4

square

#A42F28 #5FA428 #289DA4 #6D28A4

split-complementary

#A42F28 #28A46D #285FA4

monochromatic

#421310 #73211C #A42F28 #CF433A #DB726B

Accessibility & contrast

On white

6.96

#A42F28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#A42F28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A42F28

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42F28	#FFFFFF	#000000	##FFFFFF
##A42F28	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514926

Deuteranopia (green-blind)

#6E6324

Tritanopia (blue-blind)

#B5022E

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a42f28;
/* rgb */ color: rgb(164, 47, 40);
/* oklch */ color: oklch(48.4% 0.154 27.8);

Tailwind

colors: {
  custom: {
    50: '#c76f62',
    500: '#a42f28',
    950: '#000000',
  },
}

SCSS

$custom: #a42f28;
$custom-light: #c76f62;
$custom-dark: #000000;

JSON

{
  "hex": "#a42f28",
  "rgb": {
    "r": 164,
    "g": 47,
    "b": 40
  },
  "hsl": {
    "h": 3.387,
    "s": 60.784,
    "l": 40
  },
  "oklch": {
    "l": 0.48363,
    "c": 0.15436,
    "h": 27.8
  },
  "luminance": 0.10079
}

Semantic roles & 50–950 ramp

primary

#A42F28

secondary

#66BCC1

accent

#DBE444

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#150805

muted

#837B79

Preview Lab

Preview with #A42F28

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

Preview Lab → · Contrast checker → · Palette generator →