#3579A7#3579A7

#3579A7 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.3% C 0.099 H 241.4°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3579A7
RGB	rgb(53, 121, 167)
HSL	hsl(204, 52%, 43%)
HSV	hsv(204, 68%, 65%)
CMYK	cmyk(68.3%, 27.5%, 0%, 34.5%)
CIE-LAB	lab(48.54, -6.31, -30.85)
CIE-LCH	lch(48.54, 31.49, 258.44°)
OKLab	oklab(55.32% -0.0475 -0.087)
OKLCH	oklch(55.32% 0.099 241.4)
XYZ	xyz(15.2780, 17.2200, 39.0703)
Luminance	0.1722 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579A7 #A76335

analogous

#35A79C #3579A7 #3540A7

triadic

#3579A7 #A73579 #79A735

tetradic

#3579A7 #9C35A7 #A76335 #40A735

square

#3579A7 #9C35A7 #A76335 #40A735

split-complementary

#3579A7 #A73540 #A79C35

monochromatic

#18364A #265779 #3579A7 #5198C8 #80B4D7

Accessibility & contrast

On white

4.73

#3579A7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3579A7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3579A7

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579A7	#FFFFFF	#000000	##FFFFFF
##3579A7	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6479A9

Deuteranopia (green-blind)

#546EA6

Tritanopia (blue-blind)

#008489

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3579a7;
/* rgb */ color: rgb(53, 121, 167);
/* oklch */ color: oklch(55.3% 0.099 241.4);

Tailwind

colors: {
  custom: {
    50: '#799fc1',
    500: '#3579a7',
    950: '#000000',
  },
}

SCSS

$custom: #3579a7;
$custom-light: #799fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#3579a7",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 167
  },
  "hsl": {
    "h": 204.211,
    "s": 51.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.55322,
    "c": 0.09907,
    "h": 241.4
  },
  "luminance": 0.17222
}

Semantic roles & 50–950 ramp

primary

#3579A7

secondary

#C09578

accent

#864DDB

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3579A7

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

Preview Lab → · Contrast checker → · Palette generator →