#A03537#A03537

#A03537 is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.6% C 0.142 H 23.1°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#A03537
RGB	rgb(160, 53, 55)
HSL	hsl(359, 50%, 42%)
HSV	hsv(359, 67%, 63%)
CMYK	cmyk(0%, 66.9%, 65.6%, 37.3%)
CIE-LAB	lab(38.37, 44.35, 23.42)
CIE-LCH	lch(38.37, 50.15, 27.83°)
OKLab	oklab(48.58% 0.1305 0.0556)
OKLCH	oklch(48.58% 0.142 23.1)
XYZ	xyz(16.4616, 10.2979, 4.7346)
Luminance	0.1030 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A03537 #35A09E

analogous

#A0356C #A03537 #A06935

triadic

#A03537 #37A035 #3537A0

tetradic

#A03537 #6CA035 #35A09E #6935A0

square

#A03537 #6CA035 #35A09E #6935A0

split-complementary

#A03537 #35A069 #356CA0

monochromatic

#441717 #722627 #A03537 #C44E50 #D47C7D

Accessibility & contrast

On white

6.86

#A03537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#A03537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A03537

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A03537	#FFFFFF	#000000	##FFFFFF
##A03537	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514C36

Deuteranopia (green-blind)

#6C6334

Tritanopia (blue-blind)

#B01B37

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a03537;
/* rgb */ color: rgb(160, 53, 55);
/* oklch */ color: oklch(48.6% 0.142 23.1);

Tailwind

colors: {
  custom: {
    50: '#c3726d',
    500: '#a03537',
    950: '#000000',
  },
}

SCSS

$custom: #a03537;
$custom-light: #c3726d;
$custom-dark: #000000;

JSON

{
  "hex": "#a03537",
  "rgb": {
    "r": 160,
    "g": 53,
    "b": 55
  },
  "hsl": {
    "h": 358.879,
    "s": 50.235,
    "l": 41.765
  },
  "oklch": {
    "l": 0.48582,
    "c": 0.14187,
    "h": 23.1
  },
  "luminance": 0.10296
}

Semantic roles & 50–950 ramp

primary

#A03537

secondary

#74BCBB

accent

#DAD74E

background

#FCF7F6

surface

#F9EDEB

border

#D2C8C6

text

#140807

muted

#827B7A

Preview Lab

Preview with #A03537

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

Preview Lab → · Contrast checker → · Palette generator →