#3579C0#3579C0

#3579C0 is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.7% C 0.130 H 252.0°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3579C0
RGB	rgb(53, 121, 192)
HSL	hsl(211, 57%, 48%)
HSV	hsv(211, 72%, 75%)
CMYK	cmyk(72.4%, 37%, 0%, 24.7%)
CIE-LAB	lab(49.78, 2.62, -43.36)
CIE-LCH	lch(49.78, 43.43, 273.45°)
OKLab	oklab(56.71% -0.0401 -0.1234)
OKLCH	oklch(56.71% 0.13 252)
XYZ	xyz(17.8164, 18.2354, 52.4398)
Luminance	0.1824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579C0 #C07C35

analogous

#35BFC0 #3579C0 #3635C0

triadic

#3579C0 #C03579 #79C035

tetradic

#3579C0 #C035BF #C07C35 #35C036

square

#3579C0 #C035BF #C07C35 #35C036

split-complementary

#3579C0 #C03635 #BFC035

monochromatic

#1B3D60 #285B90 #3579C0 #5F98D3 #8FB7E0

Accessibility & contrast

On white

4.52

#3579C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#3579C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579C0

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579C0	#FFFFFF	#000000	##000000
##3579C0	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#587DC3

Deuteranopia (green-blind)

#4470BF

Tritanopia (blue-blind)

#008A93

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3579c0;
/* rgb */ color: rgb(53, 121, 192);
/* oklch */ color: oklch(56.7% 0.130 252.0);

Tailwind

colors: {
  custom: {
    50: '#7e9fd3',
    500: '#3579c0',
    950: '#000000',
  },
}

SCSS

$custom: #3579c0;
$custom-light: #7e9fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3579c0",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 192
  },
  "hsl": {
    "h": 210.647,
    "s": 56.735,
    "l": 48.039
  },
  "oklch": {
    "l": 0.56709,
    "c": 0.12976,
    "h": 252
  },
  "luminance": 0.18237
}

Semantic roles & 50–950 ramp

primary

#3579C0

secondary

#CBA986

accent

#9648E0

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3579C0

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

Preview Lab → · Contrast checker → · Palette generator →