#3577BA#3577BA

#3577BA is a mid, vivid cyan. Relative luminance 0.175; OKLCH L 55.9% C 0.124 H 251.3°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3577BA
RGB	rgb(53, 119, 186)
HSL	hsl(210, 56%, 47%)
HSV	hsv(210, 72%, 73%)
CMYK	cmyk(71.5%, 36%, 0%, 27.1%)
CIE-LAB	lab(48.88, 1.66, -41.34)
CIE-LCH	lch(48.88, 41.37, 272.29°)
OKLab	oklab(55.9% -0.0398 -0.1175)
OKLCH	oklch(55.9% 0.124 251.3)
XYZ	xyz(16.9246, 17.4939, 48.9295)
Luminance	0.1750 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3577BA #BA7835

analogous

#35BABA #3577BA #3635BA

triadic

#3577BA #BA3577 #77BA35

tetradic

#3577BA #BA35BA #BA7835 #35BA36

square

#3577BA #BA35BA #BA7835 #35BA36

split-complementary

#3577BA #BA3635 #BABA35

monochromatic

#1A3A5B #27598A #3577BA #5C96D0 #8BB4DE

Accessibility & contrast

On white

4.67

#3577BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#3577BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3577BA

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3577BA	#FFFFFF	#000000	##FFFFFF
##3577BA	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597BBD

Deuteranopia (green-blind)

#456EB9

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3577ba;
/* rgb */ color: rgb(53, 119, 186);
/* oklch */ color: oklch(55.9% 0.124 251.3);

Tailwind

colors: {
  custom: {
    50: '#7c9dcf',
    500: '#3577ba',
    950: '#000000',
  },
}

SCSS

$custom: #3577ba;
$custom-light: #7c9dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3577ba",
  "rgb": {
    "r": 53,
    "g": 119,
    "b": 186
  },
  "hsl": {
    "h": 210.226,
    "s": 55.649,
    "l": 46.863
  },
  "oklch": {
    "l": 0.55897,
    "c": 0.12405,
    "h": 251.3
  },
  "luminance": 0.17496
}

Semantic roles & 50–950 ramp

primary

#3577BA

secondary

#C8A682

accent

#9449DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3577BA

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

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