#3579A3#3579A3

#3579A3 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.1% C 0.095 H 238.9°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3579A3
RGB	rgb(53, 121, 163)
HSL	hsl(203, 51%, 42%)
HSV	hsv(203, 67%, 64%)
CMYK	cmyk(67.5%, 25.8%, 0%, 36.1%)
CIE-LAB	lab(48.35, -7.70, -28.80)
CIE-LCH	lch(48.35, 29.81, 255.03°)
OKLab	oklab(55.12% -0.0488 -0.081)
OKLCH	oklch(55.12% 0.095 238.9)
XYZ	xyz(14.9139, 17.0744, 37.1529)
Luminance	0.1708 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579A3 #A35F35

analogous

#35A396 #3579A3 #3542A3

triadic

#3579A3 #A33579 #79A335

tetradic

#3579A3 #9635A3 #A35F35 #42A335

square

#3579A3 #9635A3 #A35F35 #42A335

split-complementary

#3579A3 #A33542 #A39635

monochromatic

#173447 #265775 #3579A3 #4F99C6 #7EB4D5

Accessibility & contrast

On white

4.76

#3579A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3579A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3579A3

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579A3	#FFFFFF	#000000	##FFFFFF
##3579A3	1.00	4.76	4.42	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6679A5

Deuteranopia (green-blind)

#566EA2

Tritanopia (blue-blind)

#008487

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3579a3;
/* rgb */ color: rgb(53, 121, 163);
/* oklch */ color: oklch(55.1% 0.095 238.9);

Tailwind

colors: {
  custom: {
    50: '#799fbe',
    500: '#3579a3',
    950: '#000000',
  },
}

SCSS

$custom: #3579a3;
$custom-light: #799fbe;
$custom-dark: #000000;

JSON

{
  "hex": "#3579a3",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 163
  },
  "hsl": {
    "h": 202.909,
    "s": 50.926,
    "l": 42.353
  },
  "oklch": {
    "l": 0.55117,
    "c": 0.0946,
    "h": 238.9
  },
  "luminance": 0.17076
}

Semantic roles & 50–950 ramp

primary

#3579A3

secondary

#BE9176

accent

#834DDA

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3579A3

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

Preview Lab → · Contrast checker → · Palette generator →