#3577BE#3577BE

#3577BE is a mid, vivid cyan. Relative luminance 0.177; OKLCH L 56.1% C 0.129 H 252.6°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3577BE
RGB	rgb(53, 119, 190)
HSL	hsl(211, 56%, 48%)
HSV	hsv(211, 72%, 75%)
CMYK	cmyk(72.1%, 37.4%, 0%, 25.5%)
CIE-LAB	lab(49.09, 3.11, -43.30)
CIE-LCH	lch(49.09, 43.41, 274.11°)
OKLab	oklab(56.13% -0.0387 -0.1233)
OKLCH	oklch(56.13% 0.129 252.6)
XYZ	xyz(17.3558, 17.6663, 51.2005)
Luminance	0.1767 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3577BE #BE7C35

analogous

#35BBBE #3577BE #3735BE

triadic

#3577BE #BE3577 #77BE35

tetradic

#3577BE #BE35BB #BE7C35 #35BE37

square

#3577BE #BE35BB #BE7C35 #35BE37

split-complementary

#3577BE #BE3735 #BBBE35

monochromatic

#1A3B5E #28598E #3577BE #5E96D2 #8EB5DF

Accessibility & contrast

On white

4.63

#3577BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#3577BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3577BE

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3577BE	#FFFFFF	#000000	##FFFFFF
##3577BE	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567CC1

Deuteranopia (green-blind)

#426FBD

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3577be;
/* rgb */ color: rgb(53, 119, 190);
/* oklch */ color: oklch(56.1% 0.129 252.6);

Tailwind

colors: {
  custom: {
    50: '#7d9dd2',
    500: '#3577be',
    950: '#000000',
  },
}

SCSS

$custom: #3577be;
$custom-light: #7d9dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3577be",
  "rgb": {
    "r": 53,
    "g": 119,
    "b": 190
  },
  "hsl": {
    "h": 211.095,
    "s": 56.379,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56133,
    "c": 0.12921,
    "h": 252.6
  },
  "luminance": 0.17668
}

Semantic roles & 50–950 ramp

primary

#3577BE

secondary

#CAA985

accent

#9748E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3577BE

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

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