#3578D1#3578D1

#3578D1 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.5% C 0.153 H 256.7°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3578D1
RGB	rgb(53, 120, 209)
HSL	hsl(214, 63%, 51%)
HSV	hsv(214, 75%, 82%)
CMYK	cmyk(74.6%, 42.6%, 0%, 18%)
CIE-LAB	lab(50.44, 9.46, -52.01)
CIE-LCH	lch(50.44, 52.87, 280.31°)
OKLab	oklab(57.53% -0.0353 -0.1488)
OKLCH	oklch(57.53% 0.153 256.7)
XYZ	xyz(19.6891, 18.7910, 62.8986)
Luminance	0.1879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578D1 #D18E35

analogous

#35C6D1 #3578D1 #4035D1

triadic

#3578D1 #D13578 #78D135

tetradic

#3578D1 #D135C6 #D18E35 #35D140

square

#3578D1 #D135C6 #D18E35 #35D140

split-complementary

#3578D1 #D14035 #C6D135

monochromatic

#1A4072 #255BA4 #3578D1 #6799DC #99BBE8

Accessibility & contrast

On white

4.41

#3578D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#3578D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3578D1

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578D1	#FFFFFF	#000000	##000000
##3578D1	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C80D4

Deuteranopia (green-blind)

#3071CF

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3578d1;
/* rgb */ color: rgb(53, 120, 209);
/* oklch */ color: oklch(57.5% 0.153 256.7);

Tailwind

colors: {
  custom: {
    50: '#819edf',
    500: '#3578d1',
    950: '#000000',
  },
}

SCSS

$custom: #3578d1;
$custom-light: #819edf;
$custom-dark: #000000;

JSON

{
  "hex": "#3578d1",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 209
  },
  "hsl": {
    "h": 214.231,
    "s": 62.903,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57532,
    "c": 0.15294,
    "h": 256.7
  },
  "luminance": 0.18793
}

Semantic roles & 50–950 ramp

primary

#3578D1

secondary

#D3B68F

accent

#9F42E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3578D1

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

Preview Lab → · Contrast checker → · Palette generator →