#3A73B7#3A73B7

#3A73B7 is a mid, vivid cyan. Relative luminance 0.166; OKLCH L 55.0% C 0.122 H 254.3°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3A73B7
RGB	rgb(58, 115, 183)
HSL	hsl(213, 52%, 47%)
HSV	hsv(213, 68%, 72%)
CMYK	cmyk(68.3%, 37.2%, 0%, 28.2%)
CIE-LAB	lab(47.72, 3.80, -41.42)
CIE-LCH	lch(47.72, 41.59, 275.24°)
OKLab	oklab(55% -0.0331 -0.1177)
OKLCH	oklch(55% 0.122 254.3)
XYZ	xyz(16.4198, 16.5782, 47.1251)
Luminance	0.1658 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A73B7 #B77E3A

analogous

#3AB2B7 #3A73B7 #403AB7

triadic

#3A73B7 #B73A73 #73B73A

tetradic

#3A73B7 #B73AB2 #B77E3A #3AB740

square

#3A73B7 #B73AB2 #B77E3A #3AB740

split-complementary

#3A73B7 #B7403A #B2B73A

monochromatic

#1D395A #2B5689 #3A73B7 #6192CD #90B2DC

Accessibility & contrast

On white

4.87

#3A73B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#3A73B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A73B7

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A73B7	#FFFFFF	#000000	##FFFFFF
##3A73B7	1.00	4.87	4.32	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5578BA

Deuteranopia (green-blind)

#426CB6

Tritanopia (blue-blind)

#00838C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3a73b7;
/* rgb */ color: rgb(58, 115, 183);
/* oklch */ color: oklch(55.0% 0.122 254.3);

Tailwind

colors: {
  custom: {
    50: '#7e9acd',
    500: '#3a73b7',
    950: '#000000',
  },
}

SCSS

$custom: #3a73b7;
$custom-light: #7e9acd;
$custom-dark: #000000;

JSON

{
  "hex": "#3a73b7",
  "rgb": {
    "r": 58,
    "g": 115,
    "b": 183
  },
  "hsl": {
    "h": 212.64,
    "s": 51.867,
    "l": 47.255
  },
  "oklch": {
    "l": 0.54995,
    "c": 0.12231,
    "h": 254.3
  },
  "luminance": 0.1658
}

Semantic roles & 50–950 ramp

primary

#3A73B7

secondary

#C7A986

accent

#9A4CDB

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3A73B7

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

Preview Lab → · Contrast checker → · Palette generator →