#3579C7#3579C7

#3579C7 is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.1% C 0.139 H 253.9°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3579C7
RGB	rgb(53, 121, 199)
HSL	hsl(212, 58%, 49%)
HSV	hsv(212, 73%, 78%)
CMYK	cmyk(73.4%, 39.2%, 0%, 22%)
CIE-LAB	lab(50.16, 5.17, -46.76)
CIE-LCH	lch(50.16, 47.05, 276.31°)
OKLab	oklab(57.13% -0.0384 -0.1334)
OKLCH	oklch(57.13% 0.139 253.9)
XYZ	xyz(18.6105, 18.5531, 56.6220)
Luminance	0.1855 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579C7 #C78335

analogous

#35C2C7 #3579C7 #3A35C7

triadic

#3579C7 #C73579 #79C735

tetradic

#3579C7 #C735C2 #C78335 #35C73A

square

#3579C7 #C735C2 #C78335 #35C73A

split-complementary

#3579C7 #C73A35 #C2C735

monochromatic

#1B3E66 #285C97 #3579C7 #6499D6 #94B9E2

Accessibility & contrast

On white

4.46

#3579C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#3579C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579C7

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579C7	#FFFFFF	#000000	##000000
##3579C7	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#547FCA

Deuteranopia (green-blind)

#3E71C5

Tritanopia (blue-blind)

#008B96

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3579c7;
/* rgb */ color: rgb(53, 121, 199);
/* oklch */ color: oklch(57.1% 0.139 253.9);

Tailwind

colors: {
  custom: {
    50: '#7f9fd8',
    500: '#3579c7',
    950: '#000000',
  },
}

SCSS

$custom: #3579c7;
$custom-light: #7f9fd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3579c7",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 199
  },
  "hsl": {
    "h": 212.055,
    "s": 57.937,
    "l": 49.412
  },
  "oklch": {
    "l": 0.57129,
    "c": 0.13879,
    "h": 253.9
  },
  "luminance": 0.18555
}

Semantic roles & 50–950 ramp

primary

#3579C7

secondary

#CEAE8A

accent

#9947E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3579C7

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

Preview Lab → · Contrast checker → · Palette generator →