#A42B21#A42B21

#A42B21 is a mid, vivid red. Relative luminance 0.097; OKLCH L 47.9% C 0.159 H 29.1°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#A42B21
RGB	rgb(164, 43, 33)
HSL	hsl(5, 66%, 39%)
HSV	hsv(5, 80%, 64%)
CMYK	cmyk(0%, 73.8%, 79.9%, 35.7%)
CIE-LAB	lab(37.36, 48.65, 35.53)
CIE-LCH	lch(37.36, 60.24, 36.14°)
OKLab	oklab(47.87% 0.139 0.0774)
OKLCH	oklch(47.87% 0.159 29.1)
XYZ	xyz(16.4502, 9.7326, 2.4510)
Luminance	0.0973 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42B21 #219AA4

analogous

#A42158 #A42B21 #A46C21

triadic

#A42B21 #21A42B #2B21A4

tetradic

#A42B21 #58A421 #219AA4 #6C21A4

square

#A42B21 #58A421 #219AA4 #6C21A4

split-complementary

#A42B21 #21A46C #2158A4

monochromatic

#3E100C #711E17 #A42B21 #D53A2D #DF6A60

Accessibility & contrast

On white

7.13

#A42B21 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#A42B21 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42B21

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42B21	#FFFFFF	#000000	##FFFFFF
##A42B21	1.00	7.13	2.95	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F471F

Deuteranopia (green-blind)

#6D621C

Tritanopia (blue-blind)

#B5002A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a42b21;
/* rgb */ color: rgb(164, 43, 33);
/* oklch */ color: oklch(47.9% 0.159 29.1);

Tailwind

colors: {
  custom: {
    50: '#c86d5d',
    500: '#a42b21',
    950: '#000000',
  },
}

SCSS

$custom: #a42b21;
$custom-light: #c86d5d;
$custom-dark: #000000;

JSON

{
  "hex": "#a42b21",
  "rgb": {
    "r": 164,
    "g": 43,
    "b": 33
  },
  "hsl": {
    "h": 4.58,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47867,
    "c": 0.15903,
    "h": 29.1
  },
  "luminance": 0.0973
}

Semantic roles & 50–950 ramp

primary

#A42B21

secondary

#5DBCC4

accent

#DCE93E

background

#FDF6F5

surface

#FAECE9

border

#D3C7C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A42B21

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

Preview Lab → · Contrast checker → · Palette generator →