#3577CF#3577CF

#3577CF is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.2% C 0.151 H 256.7°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3577CF
RGB	rgb(53, 119, 207)
HSL	hsl(214, 62%, 51%)
HSV	hsv(214, 74%, 81%)
CMYK	cmyk(74.4%, 42.5%, 0%, 18.8%)
CIE-LAB	lab(50.04, 9.34, -51.52)
CIE-LCH	lch(50.04, 52.36, 280.28°)
OKLab	oklab(57.18% -0.0348 -0.1474)
OKLCH	oklch(57.18% 0.151 256.7)
XYZ	xyz(19.3234, 18.4533, 61.5628)
Luminance	0.1846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3577CF #CF8D35

analogous

#35C4CF #3577CF #4035CF

triadic

#3577CF #CF3577 #77CF35

tetradic

#3577CF #CF35C4 #CF8D35 #35CF40

square

#3577CF #CF35C4 #CF8D35 #35CF40

split-complementary

#3577CF #CF4035 #C4CF35

monochromatic

#1A3F6F #265BA1 #3577CF #6698DB #98BAE7

Accessibility & contrast

On white

4.48

#3577CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#3577CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3577CF

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3577CF	#FFFFFF	#000000	##000000
##3577CF	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C7FD2

Deuteranopia (green-blind)

#3071CD

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3577cf;
/* rgb */ color: rgb(53, 119, 207);
/* oklch */ color: oklch(57.2% 0.151 256.7);

Tailwind

colors: {
  custom: {
    50: '#809dde',
    500: '#3577cf',
    950: '#000000',
  },
}

SCSS

$custom: #3577cf;
$custom-light: #809dde;
$custom-dark: #000000;

JSON

{
  "hex": "#3577cf",
  "rgb": {
    "r": 53,
    "g": 119,
    "b": 207
  },
  "hsl": {
    "h": 214.286,
    "s": 61.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57184,
    "c": 0.15143,
    "h": 256.7
  },
  "luminance": 0.18456
}

Semantic roles & 50–950 ramp

primary

#3577CF

secondary

#D2B58E

accent

#9F43E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3577CF

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

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