#3577C4#3577C4

#3577C4 is a mid, vivid cyan. Relative luminance 0.179; OKLCH L 56.5% C 0.137 H 254.2°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3577C4
RGB	rgb(53, 119, 196)
HSL	hsl(212, 57%, 49%)
HSV	hsv(212, 73%, 77%)
CMYK	cmyk(73%, 39.3%, 0%, 23.1%)
CIE-LAB	lab(49.42, 5.30, -46.23)
CIE-LCH	lch(49.42, 46.53, 276.54°)
OKLab	oklab(56.5% -0.0373 -0.1318)
OKLCH	oklch(56.5% 0.137 254.2)
XYZ	xyz(18.0251, 17.9341, 54.7255)
Luminance	0.1794 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3577C4 #C48235

analogous

#35BFC4 #3577C4 #3B35C4

triadic

#3577C4 #C43577 #77C435

tetradic

#3577C4 #C435BF #C48235 #35C43B

square

#3577C4 #C435BF #C48235 #35C43B

split-complementary

#3577C4 #C43B35 #BFC435

monochromatic

#1B3D64 #285A94 #3577C4 #6297D4 #92B7E1

Accessibility & contrast

On white

4.58

#3577C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#3577C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3577C4

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3577C4	#FFFFFF	#000000	##000000
##3577C4	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#537DC7

Deuteranopia (green-blind)

#3D6FC2

Tritanopia (blue-blind)

#008994

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3577c4;
/* rgb */ color: rgb(53, 119, 196);
/* oklch */ color: oklch(56.5% 0.137 254.2);

Tailwind

colors: {
  custom: {
    50: '#7e9dd6',
    500: '#3577c4',
    950: '#000000',
  },
}

SCSS

$custom: #3577c4;
$custom-light: #7e9dd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3577c4",
  "rgb": {
    "r": 53,
    "g": 119,
    "b": 196
  },
  "hsl": {
    "h": 212.308,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.56495,
    "c": 0.13701,
    "h": 254.2
  },
  "luminance": 0.17936
}

Semantic roles & 50–950 ramp

primary

#3577C4

secondary

#CCAD88

accent

#9A47E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3577C4

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

Preview Lab → · Contrast checker → · Palette generator →