#A33F23#A33F23

#A33F23 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.1% C 0.139 H 36.3°. Best body text is #FFFFFF at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#A33F23
RGB	rgb(163, 63, 35)
HSL	hsl(13, 65%, 39%)
HSV	hsv(13, 79%, 64%)
CMYK	cmyk(0%, 61.3%, 78.5%, 36.1%)
CIE-LAB	lab(40.35, 39.84, 37.45)
CIE-LCH	lch(40.35, 54.68, 43.23°)
OKLab	oklab(50.09% 0.1121 0.0822)
OKLCH	oklch(50.09% 0.139 36.3)
XYZ	xyz(17.1870, 11.4653, 2.8978)
Luminance	0.1146 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33F23 #2387A3

analogous

#A32347 #A33F23 #A37F23

triadic

#A33F23 #23A33F #3F23A3

tetradic

#A33F23 #47A323 #2387A3 #7F23A3

square

#A33F23 #47A323 #2387A3 #7F23A3

split-complementary

#A33F23 #23A37F #2347A3

monochromatic

#3E180D #712C18 #A33F23 #D35431 #DD7E63

Accessibility & contrast

On white

6.38

#A33F23 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#A33F23 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33F23

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33F23	#FFFFFF	#000000	##FFFFFF
##A33F23	1.00	6.38	3.29	6.38
#FFFFFF	6.38	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B511F

Deuteranopia (green-blind)

#746720

Tritanopia (blue-blind)

#B32739

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #a33f23;
/* rgb */ color: rgb(163, 63, 35);
/* oklch */ color: oklch(50.1% 0.139 36.3);

Tailwind

colors: {
  custom: {
    50: '#c67860',
    500: '#a33f23',
    950: '#000000',
  },
}

SCSS

$custom: #a33f23;
$custom-light: #c67860;
$custom-dark: #000000;

JSON

{
  "hex": "#a33f23",
  "rgb": {
    "r": 163,
    "g": 63,
    "b": 35
  },
  "hsl": {
    "h": 13.125,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.50089,
    "c": 0.13898,
    "h": 36.3
  },
  "luminance": 0.11463
}

Semantic roles & 50–950 ramp

primary

#A33F23

secondary

#5FADC3

accent

#C3E840

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140905

muted

#837B79

Preview Lab

Preview with #A33F23

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

Preview Lab → · Contrast checker → · Palette generator →