#3578C7#3578C7

#3578C7 is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.9% C 0.140 H 254.5°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3578C7
RGB	rgb(53, 120, 199)
HSL	hsl(212, 58%, 49%)
HSV	hsv(212, 73%, 78%)
CMYK	cmyk(73.4%, 39.7%, 0%, 22%)
CIE-LAB	lab(49.87, 5.78, -47.22)
CIE-LCH	lch(49.87, 47.57, 276.98°)
OKLab	oklab(56.9% -0.0375 -0.1347)
OKLCH	oklch(56.9% 0.14 254.5)
XYZ	xyz(18.4897, 18.3113, 56.5817)
Luminance	0.1831 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3578C7 #C78435

analogous

#35C1C7 #3578C7 #3B35C7

triadic

#3578C7 #C73578 #78C735

tetradic

#3578C7 #C735C1 #C78435 #35C73B

square

#3578C7 #C735C1 #C78435 #35C73B

split-complementary

#3578C7 #C73B35 #C1C735

monochromatic

#1B3E66 #285B97 #3578C7 #6498D6 #94B8E2

Accessibility & contrast

On white

4.50

#3578C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3578C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3578C7

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3578C7	#FFFFFF	#000000	##000000
##3578C7	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#537ECA

Deuteranopia (green-blind)

#3C70C5

Tritanopia (blue-blind)

#008B96

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3578c7;
/* rgb */ color: rgb(53, 120, 199);
/* oklch */ color: oklch(56.9% 0.140 254.5);

Tailwind

colors: {
  custom: {
    50: '#7f9ed8',
    500: '#3578c7',
    950: '#000000',
  },
}

SCSS

$custom: #3578c7;
$custom-light: #7f9ed8;
$custom-dark: #000000;

JSON

{
  "hex": "#3578c7",
  "rgb": {
    "r": 53,
    "g": 120,
    "b": 199
  },
  "hsl": {
    "h": 212.466,
    "s": 57.937,
    "l": 49.412
  },
  "oklch": {
    "l": 0.56904,
    "c": 0.13987,
    "h": 254.5
  },
  "luminance": 0.18313
}

Semantic roles & 50–950 ramp

primary

#3578C7

secondary

#CEAF8A

accent

#9A47E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3578C7

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

Preview Lab → · Contrast checker → · Palette generator →