#A01738#A01738

#A01738 is a mid, vivid red. Relative luminance 0.084; OKLCH L 45.9% C 0.169 H 15.0°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#A01738
RGB	rgb(160, 23, 56)
HSL	hsl(346, 75%, 36%)
HSV	hsv(346, 86%, 63%)
CMYK	cmyk(0%, 85.6%, 65%, 37.3%)
CIE-LAB	lab(34.75, 54.53, 18.15)
CIE-LCH	lch(34.75, 57.47, 18.41°)
OKLab	oklab(45.9% 0.1633 0.0437)
OKLCH	oklch(45.9% 0.169 15)
XYZ	xyz(15.5191, 8.3743, 4.5399)
Luminance	0.0837 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A01738 #17A07F

analogous

#A0177C #A01738 #A03A17

triadic

#A01738 #38A017 #1738A0

tetradic

#A01738 #7CA017 #17A07F #3A17A0

square

#A01738 #7CA017 #17A07F #3A17A0

split-complementary

#A01738 #17A03A #177CA0

monochromatic

#350813 #6A0F25 #A01738 #D61F4B #E54C71

Accessibility & contrast

On white

7.85

#A01738 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#A01738 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A01738

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A01738	#FFFFFF	#000000	##FFFFFF
##A01738	1.00	7.85	2.67	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#424038

Deuteranopia (green-blind)

#645C34

Tritanopia (blue-blind)

#B00026

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #a01738;
/* rgb */ color: rgb(160, 23, 56);
/* oklch */ color: oklch(45.9% 0.169 15.0);

Tailwind

colors: {
  custom: {
    50: '#c4666e',
    500: '#a01738',
    950: '#000000',
  },
}

SCSS

$custom: #a01738;
$custom-light: #c4666e;
$custom-dark: #000000;

JSON

{
  "hex": "#a01738",
  "rgb": {
    "r": 160,
    "g": 23,
    "b": 56
  },
  "hsl": {
    "h": 345.547,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.45897,
    "c": 0.16908,
    "h": 15
  },
  "luminance": 0.08372
}

Semantic roles & 50–950 ramp

primary

#A01738

secondary

#4CC7A9

accent

#F1C436

background

#FDF6F6

surface

#FAEBEB

border

#D3C6C6

text

#140707

muted

#837A7A

Preview Lab

Preview with #A01738

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

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