#3577D3#3577D3

#3577D3 is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.4% C 0.157 H 257.4°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3577D3
RGB	rgb(53, 119, 211)
HSL	hsl(215, 64%, 52%)
HSV	hsv(215, 75%, 83%)
CMYK	cmyk(74.9%, 43.6%, 0%, 17.3%)
CIE-LAB	lab(50.28, 10.82, -53.41)
CIE-LCH	lch(50.28, 54.50, 281.45°)
OKLab	oklab(57.44% -0.0341 -0.1529)
OKLCH	oklch(57.44% 0.157 257.4)
XYZ	xyz(19.8186, 18.6514, 64.1710)
Luminance	0.1865 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3577D3 #D39135

analogous

#35C6D3 #3577D3 #4235D3

triadic

#3577D3 #D33577 #77D335

tetradic

#3577D3 #D335C6 #D39135 #35D342

square

#3577D3 #D335C6 #D39135 #35D342

split-complementary

#3577D3 #D34235 #C6D335

monochromatic

#193F74 #245BA7 #3577D3 #6799DE #9ABBE9

Accessibility & contrast

On white

4.44

#3577D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#3577D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3577D3

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3577D3	#FFFFFF	#000000	##000000
##3577D3	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#497FD7

Deuteranopia (green-blind)

#2A71D1

Tritanopia (blue-blind)

#008D9B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3577d3;
/* rgb */ color: rgb(53, 119, 211);
/* oklch */ color: oklch(57.4% 0.157 257.4);

Tailwind

colors: {
  custom: {
    50: '#819de1',
    500: '#3577d3',
    950: '#000000',
  },
}

SCSS

$custom: #3577d3;
$custom-light: #819de1;
$custom-dark: #000000;

JSON

{
  "hex": "#3577d3",
  "rgb": {
    "r": 53,
    "g": 119,
    "b": 211
  },
  "hsl": {
    "h": 214.937,
    "s": 64.228,
    "l": 51.765
  },
  "oklch": {
    "l": 0.57442,
    "c": 0.1567,
    "h": 257.4
  },
  "luminance": 0.18654
}

Semantic roles & 50–950 ramp

primary

#3577D3

secondary

#D5B88F

accent

#A241E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3577D3

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

Preview Lab → · Contrast checker → · Palette generator →