#3773BA#3773BA

#3773BA is a mid, vivid cyan. Relative luminance 0.166; OKLCH L 55.1% C 0.127 H 254.3°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3773BA
RGB	rgb(55, 115, 186)
HSL	hsl(213, 54%, 47%)
HSV	hsv(213, 70%, 73%)
CMYK	cmyk(70.4%, 38.2%, 0%, 27.1%)
CIE-LAB	lab(47.77, 4.41, -43.08)
CIE-LCH	lch(47.77, 43.30, 275.84°)
OKLab	oklab(55.06% -0.0345 -0.1226)
OKLCH	oklch(55.06% 0.127 254.3)
XYZ	xyz(16.5659, 16.6171, 48.7792)
Luminance	0.1662 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3773BA #BA7E37

analogous

#37B5BA #3773BA #3C37BA

triadic

#3773BA #BA3773 #73BA37

tetradic

#3773BA #BA37B5 #BA7E37 #37BA3C

square

#3773BA #BA37B5 #BA7E37 #37BA3C

split-complementary

#3773BA #BA3C37 #B5BA37

monochromatic

#1B395C #29568B #3773BA #5F92D0 #8EB2DE

Accessibility & contrast

On white

4.86

#3773BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#3773BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3773BA

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3773BA	#FFFFFF	#000000	##FFFFFF
##3773BA	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5378BD

Deuteranopia (green-blind)

#3F6CB9

Tritanopia (blue-blind)

#00848D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3773ba;
/* rgb */ color: rgb(55, 115, 186);
/* oklch */ color: oklch(55.1% 0.127 254.3);

Tailwind

colors: {
  custom: {
    50: '#7d9acf',
    500: '#3773ba',
    950: '#000000',
  },
}

SCSS

$custom: #3773ba;
$custom-light: #7d9acf;
$custom-dark: #000000;

JSON

{
  "hex": "#3773ba",
  "rgb": {
    "r": 55,
    "g": 115,
    "b": 186
  },
  "hsl": {
    "h": 212.519,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.55055,
    "c": 0.12742,
    "h": 254.3
  },
  "luminance": 0.16619
}

Semantic roles & 50–950 ramp

primary

#3773BA

secondary

#C8A985

accent

#9A4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3773BA

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

Preview Lab → · Contrast checker → · Palette generator →