#3579A9#3579A9

#3579A9 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.4% C 0.101 H 242.5°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3579A9
RGB	rgb(53, 121, 169)
HSL	hsl(205, 52%, 44%)
HSV	hsv(205, 69%, 66%)
CMYK	cmyk(68.6%, 28.4%, 0%, 33.7%)
CIE-LAB	lab(48.63, -5.61, -31.87)
CIE-LCH	lch(48.63, 32.36, 260.01°)
OKLab	oklab(55.43% -0.0468 -0.0899)
OKLCH	oklch(55.43% 0.101 242.5)
XYZ	xyz(15.4643, 17.2946, 40.0516)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579A9 #A96535

analogous

#35A99F #3579A9 #353FA9

triadic

#3579A9 #A93579 #79A935

tetradic

#3579A9 #9F35A9 #A96535 #3FA935

square

#3579A9 #9F35A9 #A96535 #3FA935

split-complementary

#3579A9 #A9353F #A99F35

monochromatic

#18364C #26587A #3579A9 #5298C9 #81B4D7

Accessibility & contrast

On white

4.71

#3579A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#3579A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3579A9

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579A9	#FFFFFF	#000000	##FFFFFF
##3579A9	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637AAB

Deuteranopia (green-blind)

#536EA8

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3579a9;
/* rgb */ color: rgb(53, 121, 169);
/* oklch */ color: oklch(55.4% 0.101 242.5);

Tailwind

colors: {
  custom: {
    50: '#7a9fc2',
    500: '#3579a9',
    950: '#000000',
  },
}

SCSS

$custom: #3579a9;
$custom-light: #7a9fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#3579a9",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 169
  },
  "hsl": {
    "h": 204.828,
    "s": 52.252,
    "l": 43.529
  },
  "oklch": {
    "l": 0.55426,
    "c": 0.10136,
    "h": 242.5
  },
  "luminance": 0.17296
}

Semantic roles & 50–950 ramp

primary

#3579A9

secondary

#C19779

accent

#884CDC

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3579A9

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

Preview Lab → · Contrast checker → · Palette generator →