#3579C4#3579C4

#3579C4 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.9% C 0.135 H 253.1°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3579C4
RGB	rgb(53, 121, 196)
HSL	hsl(211, 57%, 49%)
HSV	hsv(211, 73%, 77%)
CMYK	cmyk(73%, 38.3%, 0%, 23.1%)
CIE-LAB	lab(50.00, 4.07, -45.31)
CIE-LCH	lch(50.00, 45.49, 275.14°)
OKLab	oklab(56.95% -0.0391 -0.1291)
OKLCH	oklch(56.95% 0.135 253.1)
XYZ	xyz(18.2657, 18.4151, 54.8057)
Luminance	0.1842 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579C4 #C48035

analogous

#35C1C4 #3579C4 #3935C4

triadic

#3579C4 #C43579 #79C435

tetradic

#3579C4 #C435C1 #C48035 #35C439

square

#3579C4 #C435C1 #C48035 #35C439

split-complementary

#3579C4 #C43935 #C1C435

monochromatic

#1B3E64 #285B94 #3579C4 #6298D4 #92B8E1

Accessibility & contrast

On white

4.48

#3579C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#3579C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579C4

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579C4	#FFFFFF	#000000	##000000
##3579C4	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#567EC7

Deuteranopia (green-blind)

#4071C3

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3579c4;
/* rgb */ color: rgb(53, 121, 196);
/* oklch */ color: oklch(56.9% 0.135 253.1);

Tailwind

colors: {
  custom: {
    50: '#7e9fd6',
    500: '#3579c4',
    950: '#000000',
  },
}

SCSS

$custom: #3579c4;
$custom-light: #7e9fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3579c4",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 196
  },
  "hsl": {
    "h": 211.469,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.56947,
    "c": 0.1349,
    "h": 253.1
  },
  "luminance": 0.18417
}

Semantic roles & 50–950 ramp

primary

#3579C4

secondary

#CCAC88

accent

#9847E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3579C4

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

Preview Lab → · Contrast checker → · Palette generator →