#A01537#A01537

#A01537 is a mid, vivid red. Relative luminance 0.083; OKLCH L 45.8% C 0.170 H 15.2°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#A01537
RGB	rgb(160, 21, 55)
HSL	hsl(345, 77%, 35%)
HSV	hsv(345, 87%, 63%)
CMYK	cmyk(0%, 86.9%, 65.6%, 37.3%)
CIE-LAB	lab(34.58, 54.92, 18.57)
CIE-LCH	lch(34.58, 57.97, 18.68°)
OKLab	oklab(45.76% 0.1644 0.0446)
OKLCH	oklch(45.76% 0.17 15.2)
XYZ	xyz(15.4567, 8.2882, 4.3996)
Luminance	0.0829 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01537 #15A07E

analogous

#A0157C #A01537 #A03915

triadic

#A01537 #37A015 #1537A0

tetradic

#A01537 #7CA015 #15A07E #3915A0

square

#A01537 #7CA015 #15A07E #3915A0

split-complementary

#A01537 #15A039 #157CA0

monochromatic

#340712 #6A0E24 #A01537 #D61C4A #E7486F

Accessibility & contrast

On white

7.90

#A01537 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#A01537 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01537

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01537	#FFFFFF	#000000	##FFFFFF
##A01537	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413F37

Deuteranopia (green-blind)

#645B33

Tritanopia (blue-blind)

#B00025

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #a01537;
/* rgb */ color: rgb(160, 21, 55);
/* oklch */ color: oklch(45.8% 0.170 15.2);

Tailwind

colors: {
  custom: {
    50: '#c4656d',
    500: '#a01537',
    950: '#000000',
  },
}

SCSS

$custom: #a01537;
$custom-light: #c4656d;
$custom-dark: #000000;

JSON

{
  "hex": "#a01537",
  "rgb": {
    "r": 160,
    "g": 21,
    "b": 55
  },
  "hsl": {
    "h": 345.324,
    "s": 76.796,
    "l": 35.49
  },
  "oklch": {
    "l": 0.45762,
    "c": 0.1703,
    "h": 15.2
  },
  "luminance": 0.08286
}

Semantic roles & 50–950 ramp

primary

#A01537

secondary

#49C8A9

accent

#F3C534

background

#FDF6F6

surface

#FAEBEB

border

#D3C6C6

text

#140707

muted

#837A7A

Preview Lab

Preview with #A01537

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

Preview Lab → · Contrast checker → · Palette generator →