#3579C1#3579C1

#3579C1 is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.8% C 0.131 H 252.3°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3579C1
RGB	rgb(53, 121, 193)
HSL	hsl(211, 57%, 48%)
HSV	hsv(211, 73%, 76%)
CMYK	cmyk(72.5%, 37.3%, 0%, 24.3%)
CIE-LAB	lab(49.83, 2.98, -43.84)
CIE-LCH	lch(49.83, 43.95, 273.89°)
OKLab	oklab(56.77% -0.0398 -0.1248)
OKLCH	oklch(56.77% 0.131 252.3)
XYZ	xyz(17.9276, 18.2799, 53.0253)
Luminance	0.1828 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579C1 #C17D35

analogous

#35BFC1 #3579C1 #3735C1

triadic

#3579C1 #C13579 #79C135

tetradic

#3579C1 #C135BF #C17D35 #35C137

square

#3579C1 #C135BF #C17D35 #35C137

split-complementary

#3579C1 #C13735 #BFC135

monochromatic

#1B3D61 #285B91 #3579C1 #6098D3 #90B7E0

Accessibility & contrast

On white

4.51

#3579C1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3579C1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579C1

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579C1	#FFFFFF	#000000	##000000
##3579C1	1.00	4.51	4.66	4.66
#FFFFFF	4.51	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)

#587EC4

Deuteranopia (green-blind)

#4371C0

Tritanopia (blue-blind)

#008A94

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3579c1;
/* rgb */ color: rgb(53, 121, 193);
/* oklch */ color: oklch(56.8% 0.131 252.3);

Tailwind

colors: {
  custom: {
    50: '#7e9fd4',
    500: '#3579c1',
    950: '#000000',
  },
}

SCSS

$custom: #3579c1;
$custom-light: #7e9fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3579c1",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 193
  },
  "hsl": {
    "h": 210.857,
    "s": 56.911,
    "l": 48.235
  },
  "oklch": {
    "l": 0.56768,
    "c": 0.13104,
    "h": 252.3
  },
  "luminance": 0.18282
}

Semantic roles & 50–950 ramp

primary

#3579C1

secondary

#CBAA87

accent

#9648E0

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3579C1

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

Preview Lab → · Contrast checker → · Palette generator →