#3578BE#3578BE

#3578BE is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.4% C 0.128 H 252.0°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#3578BE
RGB	rgb(53, 120, 190)
HSL	hsl(211, 56%, 48%)
HSV	hsv(211, 72%, 75%)
CMYK	cmyk(72.1%, 36.8%, 0%, 25.5%)
CIE-LAB	lab(49.38, 2.50, -42.84)
CIE-LCH	lch(49.38, 42.91, 273.34°)
OKLab	oklab(56.36% -0.0397 -0.1219)
OKLCH	oklch(56.36% 0.128 252)
XYZ	xyz(17.4755, 17.9056, 51.2403)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578BE #BE7B35

analogous

#35BDBE #3578BE #3635BE

triadic

#3578BE #BE3578 #78BE35

tetradic

#3578BE #BE35BD #BE7B35 #35BE36

square

#3578BE #BE35BD #BE7B35 #35BE36

split-complementary

#3578BE #BE3635 #BDBE35

monochromatic

#1A3C5E #285A8E #3578BE #5E97D2 #8EB6DF

Accessibility & contrast

On white

4.58

#3578BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3578BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3578BE

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578BE	#FFFFFF	#000000	##000000
##3578BE	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#587CC1

Deuteranopia (green-blind)

#4470BD

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3578be;
/* rgb */ color: rgb(53, 120, 190);
/* oklch */ color: oklch(56.4% 0.128 252.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3578be",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 190
  },
  "hsl": {
    "h": 210.657,
    "s": 56.379,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56362,
    "c": 0.12819,
    "h": 252
  },
  "luminance": 0.17908
}

Semantic roles & 50–950 ramp

primary

#3578BE

secondary

#CAA885

accent

#9648E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3578BE

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

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