#3579C6#3579C6

#3579C6 is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.1% C 0.138 H 253.7°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3579C6
RGB	rgb(53, 121, 198)
HSL	hsl(212, 58%, 49%)
HSV	hsv(212, 73%, 78%)
CMYK	cmyk(73.2%, 38.9%, 0%, 22.4%)
CIE-LAB	lab(50.11, 4.80, -46.28)
CIE-LCH	lch(50.11, 46.53, 275.93°)
OKLab	oklab(57.07% -0.0386 -0.132)
OKLCH	oklch(57.07% 0.138 253.7)
XYZ	xyz(18.4948, 18.5068, 56.0126)
Luminance	0.1851 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579C6 #C68235

analogous

#35C2C6 #3579C6 #3A35C6

triadic

#3579C6 #C63579 #79C635

tetradic

#3579C6 #C635C2 #C68235 #35C63A

square

#3579C6 #C635C2 #C68235 #35C63A

split-complementary

#3579C6 #C63A35 #C2C635

monochromatic

#1B3E65 #285B96 #3579C6 #6399D5 #93B8E2

Accessibility & contrast

On white

4.47

#3579C6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#3579C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579C6

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579C6	#FFFFFF	#000000	##000000
##3579C6	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#557FC9

Deuteranopia (green-blind)

#3E71C4

Tritanopia (blue-blind)

#008B96

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3579c6;
/* rgb */ color: rgb(53, 121, 198);
/* oklch */ color: oklch(57.1% 0.138 253.7);

Tailwind

colors: {
  custom: {
    50: '#7f9fd8',
    500: '#3579c6',
    950: '#000000',
  },
}

SCSS

$custom: #3579c6;
$custom-light: #7f9fd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3579c6",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 198
  },
  "hsl": {
    "h": 211.862,
    "s": 57.769,
    "l": 49.216
  },
  "oklch": {
    "l": 0.57068,
    "c": 0.1375,
    "h": 253.7
  },
  "luminance": 0.18509
}

Semantic roles & 50–950 ramp

primary

#3579C6

secondary

#CDAD8A

accent

#9947E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3579C6

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

Preview Lab → · Contrast checker → · Palette generator →