#3579BE#3579BE

#3579BE is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.6% C 0.127 H 251.4°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3579BE
RGB	rgb(53, 121, 190)
HSL	hsl(210, 56%, 48%)
HSV	hsv(210, 72%, 75%)
CMYK	cmyk(72.1%, 36.3%, 0%, 25.5%)
CIE-LAB	lab(49.67, 1.89, -42.37)
CIE-LCH	lch(49.67, 42.42, 272.55°)
OKLab	oklab(56.59% -0.0406 -0.1205)
OKLCH	oklch(56.59% 0.127 251.4)
XYZ	xyz(17.5964, 18.1474, 51.2806)
Luminance	0.1815 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579BE #BE7A35

analogous

#35BEBE #3579BE #3535BE

triadic

#3579BE #BE3579 #79BE35

tetradic

#3579BE #BE35BE #BE7A35 #35BE35

square

#3579BE #BE35BE #BE7A35 #35BE35

split-complementary

#3579BE #BE3535 #BEBE35

monochromatic

#1A3C5E #285B8E #3579BE #5E98D2 #8EB6DF

Accessibility & contrast

On white

4.54

#3579BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#3579BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579BE

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579BE	#FFFFFF	#000000	##000000
##3579BE	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7DC1

Deuteranopia (green-blind)

#4570BD

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3579be;
/* rgb */ color: rgb(53, 121, 190);
/* oklch */ color: oklch(56.6% 0.127 251.4);

Tailwind

colors: {
  custom: {
    50: '#7d9fd2',
    500: '#3579be',
    950: '#000000',
  },
}

SCSS

$custom: #3579be;
$custom-light: #7d9fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3579be",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 190
  },
  "hsl": {
    "h": 210.219,
    "s": 56.379,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56591,
    "c": 0.12718,
    "h": 251.4
  },
  "luminance": 0.18149
}

Semantic roles & 50–950 ramp

primary

#3579BE

secondary

#CAA885

accent

#9448E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3579BE

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

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