#3579D0#3579D0

#3579D0 is a mid, vivid cyan. Relative luminance 0.190; OKLCH L 57.7% C 0.151 H 256.0°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#3579D0
RGB	rgb(53, 121, 208)
HSL	hsl(214, 62%, 51%)
HSV	hsv(214, 75%, 82%)
CMYK	cmyk(74.5%, 41.8%, 0%, 18.4%)
CIE-LAB	lab(50.67, 8.47, -51.08)
CIE-LCH	lch(50.67, 51.78, 279.42°)
OKLab	oklab(57.69% -0.0364 -0.1461)
OKLCH	oklch(57.69% 0.151 256)
XYZ	xyz(19.6865, 18.9835, 62.2889)
Luminance	0.1899 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579D0 #D08C35

analogous

#35C7D0 #3579D0 #3E35D0

triadic

#3579D0 #D03579 #79D035

tetradic

#3579D0 #D035C7 #D08C35 #35D03E

square

#3579D0 #D035C7 #D08C35 #35D03E

split-complementary

#3579D0 #D03E35 #C7D035

monochromatic

#1A4070 #265CA2 #3579D0 #679ADC #98BBE7

Accessibility & contrast

On white

4.38

#3579D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#3579D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579D0

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579D0	#FFFFFF	#000000	##000000
##3579D0	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F80D3

Deuteranopia (green-blind)

#3472CE

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3579d0;
/* rgb */ color: rgb(53, 121, 208);
/* oklch */ color: oklch(57.7% 0.151 256.0);

Tailwind

colors: {
  custom: {
    50: '#819fdf',
    500: '#3579d0',
    950: '#000000',
  },
}

SCSS

$custom: #3579d0;
$custom-light: #819fdf;
$custom-dark: #000000;

JSON

{
  "hex": "#3579d0",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 208
  },
  "hsl": {
    "h": 213.677,
    "s": 62.249,
    "l": 51.176
  },
  "oklch": {
    "l": 0.57689,
    "c": 0.15052,
    "h": 256
  },
  "luminance": 0.18986
}

Semantic roles & 50–950 ramp

primary

#3579D0

secondary

#D3B58E

accent

#9E42E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3579D0

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

Preview Lab → · Contrast checker → · Palette generator →