#3577C8#3577C8

#3577C8 is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.7% C 0.142 H 255.2°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3577C8
RGB	rgb(53, 119, 200)
HSL	hsl(213, 58%, 50%)
HSV	hsv(213, 74%, 78%)
CMYK	cmyk(73.5%, 40.5%, 0%, 21.6%)
CIE-LAB	lab(49.64, 6.77, -48.16)
CIE-LCH	lch(49.64, 48.64, 278.00°)
OKLab	oklab(56.74% -0.0363 -0.1375)
OKLCH	oklch(56.74% 0.142 255.2)
XYZ	xyz(18.4865, 18.1186, 57.1553)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3577C8 #C88635

analogous

#35C1C8 #3577C8 #3C35C8

triadic

#3577C8 #C83577 #77C835

tetradic

#3577C8 #C835C1 #C88635 #35C83C

square

#3577C8 #C835C1 #C88635 #35C83C

split-complementary

#3577C8 #C83C35 #C1C835

monochromatic

#1B3D67 #285A98 #3577C8 #6497D6 #95B8E3

Accessibility & contrast

On white

4.54

#3577C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#3577C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3577C8

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3577C8	#FFFFFF	#000000	##000000
##3577C8	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517DCB

Deuteranopia (green-blind)

#3870C6

Tritanopia (blue-blind)

#008A96

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3577c8;
/* rgb */ color: rgb(53, 119, 200);
/* oklch */ color: oklch(56.7% 0.142 255.2);

Tailwind

colors: {
  custom: {
    50: '#7f9dd9',
    500: '#3577c8',
    950: '#000000',
  },
}

SCSS

$custom: #3577c8;
$custom-light: #7f9dd9;
$custom-dark: #000000;

JSON

{
  "hex": "#3577c8",
  "rgb": {
    "r": 53,
    "g": 119,
    "b": 200
  },
  "hsl": {
    "h": 213.061,
    "s": 58.103,
    "l": 49.608
  },
  "oklch": {
    "l": 0.56742,
    "c": 0.14224,
    "h": 255.2
  },
  "luminance": 0.18121
}

Semantic roles & 50–950 ramp

primary

#3577C8

secondary

#CEB08B

accent

#9C46E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #3577C8

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

Preview Lab → · Contrast checker → · Palette generator →