#3579AD#3579AD

#3579AD is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.6% C 0.106 H 244.6°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3579AD
RGB	rgb(53, 121, 173)
HSL	hsl(206, 53%, 44%)
HSV	hsv(206, 69%, 68%)
CMYK	cmyk(69.4%, 30.1%, 0%, 32.2%)
CIE-LAB	lab(48.82, -4.20, -33.90)
CIE-LCH	lch(48.82, 34.16, 262.93°)
OKLab	oklab(55.64% -0.0455 -0.0958)
OKLCH	oklch(55.64% 0.106 244.6)
XYZ	xyz(15.8455, 17.4471, 42.0596)
Luminance	0.1745 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579AD #AD6935

analogous

#35ADA5 #3579AD #353DAD

triadic

#3579AD #AD3579 #79AD35

tetradic

#3579AD #A535AD #AD6935 #3DAD35

square

#3579AD #A535AD #AD6935 #3DAD35

split-complementary

#3579AD #AD353D #ADA535

monochromatic

#18374F #27587E #3579AD #5497CB #83B4D9

Accessibility & contrast

On white

4.68

#3579AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#3579AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3579AD

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579AD	#FFFFFF	#000000	##FFFFFF
##3579AD	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627AAF

Deuteranopia (green-blind)

#516FAC

Tritanopia (blue-blind)

#00868B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3579ad;
/* rgb */ color: rgb(53, 121, 173);
/* oklch */ color: oklch(55.6% 0.106 244.6);

Tailwind

colors: {
  custom: {
    50: '#7a9fc5',
    500: '#3579ad',
    950: '#000000',
  },
}

SCSS

$custom: #3579ad;
$custom-light: #7a9fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3579ad",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 173
  },
  "hsl": {
    "h": 206,
    "s": 53.097,
    "l": 44.314
  },
  "oklch": {
    "l": 0.55638,
    "c": 0.10606,
    "h": 244.6
  },
  "luminance": 0.17449
}

Semantic roles & 50–950 ramp

primary

#3579AD

secondary

#C39A7B

accent

#8A4BDD

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3579AD

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

Preview Lab → · Contrast checker → · Palette generator →