#3579A5#3579A5

#3579A5 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.2% C 0.097 H 240.2°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3579A5
RGB	rgb(53, 121, 165)
HSL	hsl(204, 51%, 43%)
HSV	hsv(204, 68%, 65%)
CMYK	cmyk(67.9%, 26.7%, 0%, 35.3%)
CIE-LAB	lab(48.44, -7.01, -29.83)
CIE-LCH	lch(48.44, 30.64, 256.78°)
OKLab	oklab(55.22% -0.0481 -0.084)
OKLCH	oklch(55.22% 0.097 240.2)
XYZ	xyz(15.0945, 17.1466, 38.1041)
Luminance	0.1715 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579A5 #A56135

analogous

#35A599 #3579A5 #3541A5

triadic

#3579A5 #A53579 #79A535

tetradic

#3579A5 #9935A5 #A56135 #41A535

square

#3579A5 #9935A5 #A56135 #41A535

split-complementary

#3579A5 #A53541 #A59935

monochromatic

#173548 #265777 #3579A5 #5098C7 #7FB4D6

Accessibility & contrast

On white

4.74

#3579A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#3579A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3579A5

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579A5	#FFFFFF	#000000	##FFFFFF
##3579A5	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6579A7

Deuteranopia (green-blind)

#556EA4

Tritanopia (blue-blind)

#008488

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3579a5;
/* rgb */ color: rgb(53, 121, 165);
/* oklch */ color: oklch(55.2% 0.097 240.2);

Tailwind

colors: {
  custom: {
    50: '#799fc0',
    500: '#3579a5',
    950: '#000000',
  },
}

SCSS

$custom: #3579a5;
$custom-light: #799fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#3579a5",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 165
  },
  "hsl": {
    "h": 203.571,
    "s": 51.376,
    "l": 42.745
  },
  "oklch": {
    "l": 0.55219,
    "c": 0.09681,
    "h": 240.2
  },
  "luminance": 0.17148
}

Semantic roles & 50–950 ramp

primary

#3579A5

secondary

#BF9377

accent

#854DDB

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3579A5

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

Preview Lab → · Contrast checker → · Palette generator →