#3578BF#3578BF

#3578BF is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.4% C 0.129 H 252.3°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3578BF
RGB	rgb(53, 120, 191)
HSL	hsl(211, 57%, 48%)
HSV	hsv(211, 72%, 75%)
CMYK	cmyk(72.3%, 37.2%, 0%, 25.1%)
CIE-LAB	lab(49.43, 2.86, -43.33)
CIE-LCH	lch(49.43, 43.42, 273.78°)
OKLab	oklab(56.42% -0.0394 -0.1233)
OKLCH	oklch(56.42% 0.129 252.3)
XYZ	xyz(17.5851, 17.9495, 51.8179)
Luminance	0.1795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578BF #BF7C35

analogous

#35BDBF #3578BF #3735BF

triadic

#3578BF #BF3578 #78BF35

tetradic

#3578BF #BF35BD #BF7C35 #35BF37

square

#3578BF #BF35BD #BF7C35 #35BF37

split-complementary

#3578BF #BF3735 #BDBF35

monochromatic

#1A3C5F #285A8F #3578BF #5F97D3 #8FB6E0

Accessibility & contrast

On white

4.57

#3578BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#3578BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3578BF

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

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

Color blindness preview

Protanopia (red-blind)

#577DC2

Deuteranopia (green-blind)

#4370BE

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3578bf;
/* rgb */ color: rgb(53, 120, 191);
/* oklch */ color: oklch(56.4% 0.129 252.3);

Tailwind

colors: {
  custom: {
    50: '#7d9ed2',
    500: '#3578bf',
    950: '#000000',
  },
}

SCSS

$custom: #3578bf;
$custom-light: #7d9ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#3578bf",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 191
  },
  "hsl": {
    "h": 210.87,
    "s": 56.557,
    "l": 47.843
  },
  "oklch": {
    "l": 0.56421,
    "c": 0.12947,
    "h": 252.3
  },
  "luminance": 0.17951
}

Semantic roles & 50–950 ramp

primary

#3578BF

secondary

#CAA985

accent

#9648E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3578BF

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

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