#3579BA#3579BA

#3579BA is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.4% C 0.122 H 250.0°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3579BA
RGB	rgb(53, 121, 186)
HSL	hsl(209, 56%, 47%)
HSV	hsv(209, 72%, 73%)
CMYK	cmyk(71.5%, 34.9%, 0%, 27.1%)
CIE-LAB	lab(49.47, 0.44, -40.40)
CIE-LCH	lch(49.47, 40.41, 270.63°)
OKLab	oklab(56.36% -0.0417 -0.1148)
OKLCH	oklch(56.36% 0.122 250)
XYZ	xyz(17.1652, 17.9749, 49.0097)
Luminance	0.1798 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579BA #BA7635

analogous

#35BAB9 #3579BA #3537BA

triadic

#3579BA #BA3579 #79BA35

tetradic

#3579BA #B935BA #BA7635 #37BA35

square

#3579BA #B935BA #BA7635 #37BA35

split-complementary

#3579BA #BA3537 #BAB935

monochromatic

#1A3B5B #275A8A #3579BA #5C97D0 #8BB6DE

Accessibility & contrast

On white

4.57

#3579BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3579BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579BA

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579BA	#FFFFFF	#000000	##000000
##3579BA	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7CBD

Deuteranopia (green-blind)

#4870B9

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3579ba;
/* rgb */ color: rgb(53, 121, 186);
/* oklch */ color: oklch(56.4% 0.122 250.0);

Tailwind

colors: {
  custom: {
    50: '#7c9fcf',
    500: '#3579ba',
    950: '#000000',
  },
}

SCSS

$custom: #3579ba;
$custom-light: #7c9fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3579ba",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 186
  },
  "hsl": {
    "h": 209.323,
    "s": 55.649,
    "l": 46.863
  },
  "oklch": {
    "l": 0.56359,
    "c": 0.1221,
    "h": 250
  },
  "luminance": 0.17977
}

Semantic roles & 50–950 ramp

primary

#3579BA

secondary

#C8A582

accent

#9249DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3579BA

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

Preview Lab → · Contrast checker → · Palette generator →