#3772BB#3772BB

#3772BB is a mid, vivid cyan. Relative luminance 0.164; OKLCH L 54.9% C 0.130 H 255.1°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3772BB
RGB	rgb(55, 114, 187)
HSL	hsl(213, 55%, 47%)
HSV	hsv(213, 71%, 73%)
CMYK	cmyk(70.6%, 39%, 0%, 26.7%)
CIE-LAB	lab(47.54, 5.39, -44.03)
CIE-LCH	lch(47.54, 44.36, 276.98°)
OKLab	oklab(54.89% -0.0333 -0.1255)
OKLCH	oklch(54.89% 0.13 255.1)
XYZ	xyz(16.5592, 16.4329, 49.3032)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3772BB #BB8037

analogous

#37B4BB #3772BB #3E37BB

triadic

#3772BB #BB3772 #72BB37

tetradic

#3772BB #BB37B4 #BB8037 #37BB3E

square

#3772BB #BB37B4 #BB8037 #37BB3E

split-complementary

#3772BB #BB3E37 #B4BB37

monochromatic

#1B385C #29558C #3772BB #5F92D0 #8EB2DE

Accessibility & contrast

On white

4.90

#3772BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#3772BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3772BB

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3772BB	#FFFFFF	#000000	##FFFFFF
##3772BB	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5077BE

Deuteranopia (green-blind)

#3C6BBA

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3772bb;
/* rgb */ color: rgb(55, 114, 187);
/* oklch */ color: oklch(54.9% 0.130 255.1);

Tailwind

colors: {
  custom: {
    50: '#7d9ad0',
    500: '#3772bb',
    950: '#000000',
  },
}

SCSS

$custom: #3772bb;
$custom-light: #7d9ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#3772bb",
  "rgb": {
    "r": 55,
    "g": 114,
    "b": 187
  },
  "hsl": {
    "h": 213.182,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54888,
    "c": 0.12981,
    "h": 255.1
  },
  "luminance": 0.16435
}

Semantic roles & 50–950 ramp

primary

#3772BB

secondary

#C9AA85

accent

#9C4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3772BB

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

Preview Lab → · Contrast checker → · Palette generator →