#A33137#A33137

#A33137 is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.6% C 0.149 H 21.8°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#A33137
RGB	rgb(163, 49, 55)
HSL	hsl(357, 54%, 42%)
HSV	hsv(357, 70%, 64%)
CMYK	cmyk(0%, 69.9%, 66.3%, 36.1%)
CIE-LAB	lab(38.31, 47.04, 23.45)
CIE-LCH	lch(38.31, 52.56, 26.50°)
OKLab	oklab(48.64% 0.1387 0.0556)
OKLCH	oklch(48.64% 0.149 21.8)
XYZ	xyz(16.8939, 10.2614, 4.7048)
Luminance	0.1026 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A33137 #31A39D

analogous

#A33170 #A33137 #A36431

triadic

#A33137 #37A331 #3137A3

tetradic

#A33137 #70A331 #31A39D #6431A3

square

#A33137 #70A331 #31A39D #6431A3

split-complementary

#A33137 #31A364 #3170A3

monochromatic

#451517 #742327 #A33137 #C84950 #D6787D

Accessibility & contrast

On white

6.88

#A33137 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#A33137 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A33137

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A33137	#FFFFFF	#000000	##FFFFFF
##A33137	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B36

Deuteranopia (green-blind)

#6D6334

Tritanopia (blue-blind)

#B31134

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a33137;
/* rgb */ color: rgb(163, 49, 55);
/* oklch */ color: oklch(48.6% 0.149 21.8);

Tailwind

colors: {
  custom: {
    50: '#c5716d',
    500: '#a33137',
    950: '#000000',
  },
}

SCSS

$custom: #a33137;
$custom-light: #c5716d;
$custom-dark: #000000;

JSON

{
  "hex": "#a33137",
  "rgb": {
    "r": 163,
    "g": 49,
    "b": 55
  },
  "hsl": {
    "h": 356.842,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48637,
    "c": 0.14941,
    "h": 21.8
  },
  "luminance": 0.10259
}

Semantic roles & 50–950 ramp

primary

#A33137

secondary

#71BFBB

accent

#DDD54B

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140807

muted

#837B7A

Preview Lab

Preview with #A33137

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

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