#3579C5#3579C5

#3579C5 is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.0% C 0.136 H 253.4°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3579C5
RGB	rgb(53, 121, 197)
HSL	hsl(212, 58%, 49%)
HSV	hsv(212, 73%, 77%)
CMYK	cmyk(73.1%, 38.6%, 0%, 22.7%)
CIE-LAB	lab(50.05, 4.44, -45.79)
CIE-LCH	lch(50.05, 46.01, 275.54°)
OKLab	oklab(57.01% -0.0389 -0.1305)
OKLCH	oklch(57.01% 0.136 253.4)
XYZ	xyz(18.3799, 18.4608, 55.4071)
Luminance	0.1846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579C5 #C58135

analogous

#35C1C5 #3579C5 #3935C5

triadic

#3579C5 #C53579 #79C535

tetradic

#3579C5 #C535C1 #C58135 #35C539

square

#3579C5 #C535C1 #C58135 #35C539

split-complementary

#3579C5 #C53935 #C1C535

monochromatic

#1B3E65 #285B95 #3579C5 #6298D5 #93B8E2

Accessibility & contrast

On white

4.48

#3579C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#3579C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579C5

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579C5	#FFFFFF	#000000	##000000
##3579C5	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#567EC8

Deuteranopia (green-blind)

#3F71C3

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3579c5;
/* rgb */ color: rgb(53, 121, 197);
/* oklch */ color: oklch(57.0% 0.136 253.4);

Tailwind

colors: {
  custom: {
    50: '#7e9fd7',
    500: '#3579c5',
    950: '#000000',
  },
}

SCSS

$custom: #3579c5;
$custom-light: #7e9fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3579c5",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 197
  },
  "hsl": {
    "h": 211.667,
    "s": 57.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.57007,
    "c": 0.1362,
    "h": 253.4
  },
  "luminance": 0.18463
}

Semantic roles & 50–950 ramp

primary

#3579C5

secondary

#CDAD89

accent

#9847E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3579C5

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

Preview Lab → · Contrast checker → · Palette generator →