#3579C3#3579C3

#3579C3 is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.9% C 0.134 H 252.9°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3579C3
RGB	rgb(53, 121, 195)
HSL	hsl(211, 57%, 49%)
HSV	hsv(211, 73%, 76%)
CMYK	cmyk(72.8%, 37.9%, 0%, 23.5%)
CIE-LAB	lab(49.94, 3.71, -44.82)
CIE-LCH	lch(49.94, 44.97, 274.73°)
OKLab	oklab(56.89% -0.0394 -0.1277)
OKLCH	oklch(56.89% 0.134 252.9)
XYZ	xyz(18.1522, 18.3697, 54.2082)
Luminance	0.1837 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3579C3 #C37F35

analogous

#35C0C3 #3579C3 #3835C3

triadic

#3579C3 #C33579 #79C335

tetradic

#3579C3 #C335C0 #C37F35 #35C338

square

#3579C3 #C335C0 #C37F35 #35C338

split-complementary

#3579C3 #C33835 #C0C335

monochromatic

#1B3D63 #285B93 #3579C3 #6198D4 #91B8E1

Accessibility & contrast

On white

4.49

#3579C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.67

#3579C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3579C3

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3579C3	#FFFFFF	#000000	##000000
##3579C3	1.00	4.49	4.67	4.67
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#577EC6

Deuteranopia (green-blind)

#4171C2

Tritanopia (blue-blind)

#008A94

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3579c3;
/* rgb */ color: rgb(53, 121, 195);
/* oklch */ color: oklch(56.9% 0.134 252.9);

Tailwind

colors: {
  custom: {
    50: '#7e9fd5',
    500: '#3579c3',
    950: '#000000',
  },
}

SCSS

$custom: #3579c3;
$custom-light: #7e9fd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3579c3",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 195
  },
  "hsl": {
    "h": 211.268,
    "s": 57.258,
    "l": 48.627
  },
  "oklch": {
    "l": 0.56887,
    "c": 0.13362,
    "h": 252.9
  },
  "luminance": 0.18372
}

Semantic roles & 50–950 ramp

primary

#3579C3

secondary

#CCAB88

accent

#9747E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3579C3

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

Preview Lab → · Contrast checker → · Palette generator →