#3578BD#3578BD

#3578BD is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.3% C 0.127 H 251.7°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3578BD
RGB	rgb(53, 120, 189)
HSL	hsl(210, 56%, 47%)
HSV	hsv(210, 72%, 74%)
CMYK	cmyk(72%, 36.5%, 0%, 25.9%)
CIE-LAB	lab(49.33, 2.14, -42.35)
CIE-LCH	lch(49.33, 42.40, 272.89°)
OKLab	oklab(56.3% -0.0399 -0.1205)
OKLCH	oklch(56.3% 0.127 251.7)
XYZ	xyz(17.3665, 17.8620, 50.6667)
Luminance	0.1786 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578BD #BD7A35

analogous

#35BCBD #3578BD #3635BD

triadic

#3578BD #BD3578 #78BD35

tetradic

#3578BD #BD35BC #BD7A35 #35BD36

square

#3578BD #BD35BC #BD7A35 #35BD36

split-complementary

#3578BD #BD3635 #BCBD35

monochromatic

#1A3B5D #285A8D #3578BD #5D97D2 #8DB6DF

Accessibility & contrast

On white

4.59

#3578BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#3578BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3578BD

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578BD	#FFFFFF	#000000	##FFFFFF
##3578BD	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597CC0

Deuteranopia (green-blind)

#456FBC

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3578bd;
/* rgb */ color: rgb(53, 120, 189);
/* oklch */ color: oklch(56.3% 0.127 251.7);

Tailwind

colors: {
  custom: {
    50: '#7d9ed1',
    500: '#3578bd',
    950: '#000000',
  },
}

SCSS

$custom: #3578bd;
$custom-light: #7d9ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#3578bd",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 189
  },
  "hsl": {
    "h": 210.441,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56303,
    "c": 0.12691,
    "h": 251.7
  },
  "luminance": 0.17864
}

Semantic roles & 50–950 ramp

primary

#3578BD

secondary

#CAA784

accent

#9548DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3578BD

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

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