#A42F21#A42F21

#A42F21 is a mid, vivid red. Relative luminance 0.100; OKLCH L 48.3% C 0.156 H 30.4°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#A42F21
RGB	rgb(164, 47, 33)
HSL	hsl(6, 66%, 39%)
HSV	hsv(6, 80%, 64%)
CMYK	cmyk(0%, 71.3%, 79.9%, 35.7%)
CIE-LAB	lab(37.91, 47.13, 36.09)
CIE-LCH	lch(37.91, 59.36, 37.44°)
OKLab	oklab(48.28% 0.1342 0.0786)
OKLCH	oklch(48.28% 0.156 30.4)
XYZ	xyz(16.6028, 10.0379, 2.5018)
Luminance	0.1003 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42F21 #2196A4

analogous

#A42154 #A42F21 #A47021

triadic

#A42F21 #21A42F #2F21A4

tetradic

#A42F21 #54A421 #2196A4 #7021A4

square

#A42F21 #54A421 #2196A4 #7021A4

split-complementary

#A42F21 #21A470 #2154A4

monochromatic

#3E120C #712017 #A42F21 #D53F2D #DF6E60

Accessibility & contrast

On white

6.98

#A42F21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#A42F21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A42F21

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42F21	#FFFFFF	#000000	##FFFFFF
##A42F21	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52491E

Deuteranopia (green-blind)

#6E631C

Tritanopia (blue-blind)

#B5002D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a42f21;
/* rgb */ color: rgb(164, 47, 33);
/* oklch */ color: oklch(48.3% 0.156 30.4);

Tailwind

colors: {
  custom: {
    50: '#c76f5d',
    500: '#a42f21',
    950: '#000000',
  },
}

SCSS

$custom: #a42f21;
$custom-light: #c76f5d;
$custom-dark: #000000;

JSON

{
  "hex": "#a42f21",
  "rgb": {
    "r": 164,
    "g": 47,
    "b": 33
  },
  "hsl": {
    "h": 6.412,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.4828,
    "c": 0.15551,
    "h": 30.4
  },
  "luminance": 0.10035
}

Semantic roles & 50–950 ramp

primary

#A42F21

secondary

#5DB9C4

accent

#D7E93E

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A42F21

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

Preview Lab → · Contrast checker → · Palette generator →