#3578CF#3578CF

#3578CF is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.4% C 0.150 H 256.3°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3578CF
RGB	rgb(53, 120, 207)
HSL	hsl(214, 62%, 51%)
HSV	hsv(214, 74%, 81%)
CMYK	cmyk(74.4%, 42%, 0%, 18.8%)
CIE-LAB	lab(50.33, 8.72, -51.06)
CIE-LCH	lch(50.33, 51.80, 279.69°)
OKLab	oklab(57.4% -0.0357 -0.146)
OKLCH	oklch(57.4% 0.15 256.3)
XYZ	xyz(19.4430, 18.6926, 61.6027)
Luminance	0.1870 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578CF #CF8C35

analogous

#35C5CF #3578CF #3F35CF

triadic

#3578CF #CF3578 #78CF35

tetradic

#3578CF #CF35C5 #CF8C35 #35CF3F

square

#3578CF #CF35C5 #CF8C35 #35CF3F

split-complementary

#3578CF #CF3F35 #C5CF35

monochromatic

#1A3F6F #265BA1 #3578CF #6699DB #98BAE7

Accessibility & contrast

On white

4.43

#3578CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#3578CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3578CF

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578CF	#FFFFFF	#000000	##000000
##3578CF	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7FD2

Deuteranopia (green-blind)

#3271CD

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3578cf;
/* rgb */ color: rgb(53, 120, 207);
/* oklch */ color: oklch(57.4% 0.150 256.3);

Tailwind

colors: {
  custom: {
    50: '#809ede',
    500: '#3578cf',
    950: '#000000',
  },
}

SCSS

$custom: #3578cf;
$custom-light: #809ede;
$custom-dark: #000000;

JSON

{
  "hex": "#3578cf",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 207
  },
  "hsl": {
    "h": 213.896,
    "s": 61.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57404,
    "c": 0.15033,
    "h": 256.3
  },
  "luminance": 0.18695
}

Semantic roles & 50–950 ramp

primary

#3578CF

secondary

#D2B48E

accent

#9E43E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3578CF

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

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