#3577C7#3577C7

#3577C7 is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.7% C 0.141 H 255.0°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3577C7
RGB	rgb(53, 119, 199)
HSL	hsl(213, 58%, 49%)
HSV	hsv(213, 73%, 78%)
CMYK	cmyk(73.4%, 40.2%, 0%, 22%)
CIE-LAB	lab(49.58, 6.40, -47.68)
CIE-LCH	lch(49.58, 48.11, 277.64°)
OKLab	oklab(56.68% -0.0366 -0.1361)
OKLCH	oklch(56.68% 0.141 255)
XYZ	xyz(18.3700, 18.0720, 56.5419)
Luminance	0.1807 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3577C7 #C78535

analogous

#35C0C7 #3577C7 #3C35C7

triadic

#3577C7 #C73577 #77C735

tetradic

#3577C7 #C735C0 #C78535 #35C73C

square

#3577C7 #C735C0 #C78535 #35C73C

split-complementary

#3577C7 #C73C35 #C0C735

monochromatic

#1B3D66 #285A97 #3577C7 #6497D6 #94B7E2

Accessibility & contrast

On white

4.55

#3577C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#3577C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3577C7

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3577C7	#FFFFFF	#000000	##000000
##3577C7	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517DCA

Deuteranopia (green-blind)

#3A70C5

Tritanopia (blue-blind)

#008A95

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3577c7;
/* rgb */ color: rgb(53, 119, 199);
/* oklch */ color: oklch(56.7% 0.141 255.0);

Tailwind

colors: {
  custom: {
    50: '#7f9dd8',
    500: '#3577c7',
    950: '#000000',
  },
}

SCSS

$custom: #3577c7;
$custom-light: #7f9dd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3577c7",
  "rgb": {
    "r": 53,
    "g": 119,
    "b": 199
  },
  "hsl": {
    "h": 212.877,
    "s": 57.937,
    "l": 49.412
  },
  "oklch": {
    "l": 0.5668,
    "c": 0.14094,
    "h": 255
  },
  "luminance": 0.18074
}

Semantic roles & 50–950 ramp

primary

#3577C7

secondary

#CEAF8A

accent

#9B47E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3577C7

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

Preview Lab → · Contrast checker → · Palette generator →