#3579C8#3579C8

#3579C8 is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.2% C 0.140 H 254.2°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3579C8
RGB	rgb(53, 121, 200)
HSL	hsl(212, 58%, 50%)
HSV	hsv(212, 74%, 78%)
CMYK	cmyk(73.5%, 39.5%, 0%, 21.6%)
CIE-LAB	lab(50.22, 5.53, -47.25)
CIE-LCH	lch(50.22, 47.57, 276.68°)
OKLab	oklab(57.19% -0.0382 -0.1348)
OKLCH	oklch(57.19% 0.14 254.2)
XYZ	xyz(18.7270, 18.5997, 57.2355)
Luminance	0.1860 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579C8 #C88435

analogous

#35C3C8 #3579C8 #3B35C8

triadic

#3579C8 #C83579 #79C835

tetradic

#3579C8 #C835C3 #C88435 #35C83B

square

#3579C8 #C835C3 #C88435 #35C83B

split-complementary

#3579C8 #C83B35 #C3C835

monochromatic

#1B3E67 #285C98 #3579C8 #6499D6 #95B9E3

Accessibility & contrast

On white

4.45

#3579C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#3579C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579C8

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579C8	#FFFFFF	#000000	##000000
##3579C8	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#547FCB

Deuteranopia (green-blind)

#3D71C6

Tritanopia (blue-blind)

#008C97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3579c8;
/* rgb */ color: rgb(53, 121, 200);
/* oklch */ color: oklch(57.2% 0.140 254.2);

Tailwind

colors: {
  custom: {
    50: '#7f9fd9',
    500: '#3579c8',
    950: '#000000',
  },
}

SCSS

$custom: #3579c8;
$custom-light: #7f9fd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3579c8",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 200
  },
  "hsl": {
    "h": 212.245,
    "s": 58.103,
    "l": 49.608
  },
  "oklch": {
    "l": 0.5719,
    "c": 0.14009,
    "h": 254.2
  },
  "luminance": 0.18602
}

Semantic roles & 50–950 ramp

primary

#3579C8

secondary

#CEAF8B

accent

#9A46E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3579C8

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

Preview Lab → · Contrast checker → · Palette generator →