#3579AA#3579AA

#3579AA is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.5% C 0.103 H 243.0°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3579AA
RGB	rgb(53, 121, 170)
HSL	hsl(205, 52%, 44%)
HSV	hsv(205, 69%, 67%)
CMYK	cmyk(68.8%, 28.8%, 0%, 33.3%)
CIE-LAB	lab(48.68, -5.26, -32.38)
CIE-LCH	lch(48.68, 32.81, 260.77°)
OKLab	oklab(55.48% -0.0465 -0.0914)
OKLCH	oklch(55.48% 0.103 243)
XYZ	xyz(15.5585, 17.3322, 40.5479)
Luminance	0.1733 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579AA #AA6635

analogous

#35AAA0 #3579AA #353FAA

triadic

#3579AA #AA3579 #79AA35

tetradic

#3579AA #A035AA #AA6635 #3FAA35

square

#3579AA #A035AA #AA6635 #3FAA35

split-complementary

#3579AA #AA353F #AAA035

monochromatic

#18374D #26587B #3579AA #5398C9 #82B4D8

Accessibility & contrast

On white

4.70

#3579AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3579AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3579AA

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

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

Color blindness preview

Protanopia (red-blind)

#637AAC

Deuteranopia (green-blind)

#536FA9

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3579aa;
/* rgb */ color: rgb(53, 121, 170);
/* oklch */ color: oklch(55.5% 0.103 243.0);

Tailwind

colors: {
  custom: {
    50: '#7a9fc3',
    500: '#3579aa',
    950: '#000000',
  },
}

SCSS

$custom: #3579aa;
$custom-light: #7a9fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#3579aa",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 170
  },
  "hsl": {
    "h": 205.128,
    "s": 52.466,
    "l": 43.725
  },
  "oklch": {
    "l": 0.55478,
    "c": 0.10253,
    "h": 243
  },
  "luminance": 0.17334
}

Semantic roles & 50–950 ramp

primary

#3579AA

secondary

#C1987A

accent

#884CDC

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3579AA

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

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