#A33F27#A33F27

#A33F27 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.1% C 0.138 H 34.8°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#A33F27
RGB	rgb(163, 63, 39)
HSL	hsl(12, 61%, 40%)
HSV	hsv(12, 76%, 64%)
CMYK	cmyk(0%, 61.3%, 76.1%, 36.1%)
CIE-LAB	lab(40.39, 40.01, 35.33)
CIE-LCH	lch(40.39, 53.37, 41.45°)
OKLab	oklab(50.13% 0.1133 0.0787)
OKLCH	oklch(50.13% 0.138 34.8)
XYZ	xyz(17.2498, 11.4904, 3.2286)
Luminance	0.1149 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33F27 #278BA3

analogous

#A3274D #A33F27 #A37D27

triadic

#A33F27 #27A33F #3F27A3

tetradic

#A33F27 #4DA327 #278BA3 #7D27A3

square

#A33F27 #4DA327 #278BA3 #7D27A3

split-complementary

#A33F27 #27A37D #274DA3

monochromatic

#40190F #722C1B #A33F27 #CF5538 #DB7F69

Accessibility & contrast

On white

6.37

#A33F27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#A33F27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33F27

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33F27	#FFFFFF	#000000	##FFFFFF
##A33F27	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5124

Deuteranopia (green-blind)

#736724

Tritanopia (blue-blind)

#B3273A

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a33f27;
/* rgb */ color: rgb(163, 63, 39);
/* oklch */ color: oklch(50.1% 0.138 34.8);

Tailwind

colors: {
  custom: {
    50: '#c57862',
    500: '#a33f27',
    950: '#000000',
  },
}

SCSS

$custom: #a33f27;
$custom-light: #c57862;
$custom-dark: #000000;

JSON

{
  "hex": "#a33f27",
  "rgb": {
    "r": 163,
    "g": 63,
    "b": 39
  },
  "hsl": {
    "h": 11.613,
    "s": 61.386,
    "l": 39.608
  },
  "oklch": {
    "l": 0.50134,
    "c": 0.13797,
    "h": 34.8
  },
  "luminance": 0.11488
}

Semantic roles & 50–950 ramp

primary

#A33F27

secondary

#64AFC1

accent

#C5E443

background

#FDF7F5

surface

#FAEDEA

border

#D3C8C6

text

#140905

muted

#837B79

Preview Lab

Preview with #A33F27

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

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