#3766BE#3766BE

#3766BE is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.4% C 0.148 H 261.6°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#3766BE
RGB	rgb(55, 102, 190)
HSL	hsl(219, 55%, 48%)
HSV	hsv(219, 71%, 75%)
CMYK	cmyk(71.1%, 46.3%, 0%, 25.5%)
CIE-LAB	lab(44.28, 14.05, -50.98)
CIE-LCH	lch(44.28, 52.88, 285.40°)
OKLab	oklab(52.42% -0.0215 -0.1461)
OKLCH	oklch(52.42% 0.148 261.6)
XYZ	xyz(15.6179, 14.0310, 50.5904)
Luminance	0.1403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3766BE #BE8F37

analogous

#37A9BE #3766BE #4B37BE

triadic

#3766BE #BE3766 #66BE37

tetradic

#3766BE #BE37A9 #BE8F37 #37BE4B

square

#3766BE #BE37A9 #BE8F37 #37BE4B

split-complementary

#3766BE #BE4B37 #A9BE37

monochromatic

#1C335F #294D8F #3766BE #6188D1 #90ACDF

Accessibility & contrast

On white

5.52

#3766BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#3766BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3766BE

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3766BE	#FFFFFF	#000000	##FFFFFF
##3766BE	1.00	5.52	3.81	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386FC1

Deuteranopia (green-blind)

#1B63BC

Tritanopia (blue-blind)

#007B89

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3766be;
/* rgb */ color: rgb(55, 102, 190);
/* oklch */ color: oklch(52.4% 0.148 261.6);

Tailwind

colors: {
  custom: {
    50: '#7e91d2',
    500: '#3766be',
    950: '#000000',
  },
}

SCSS

$custom: #3766be;
$custom-light: #7e91d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3766be",
  "rgb": {
    "r": 55,
    "g": 102,
    "b": 190
  },
  "hsl": {
    "h": 219.111,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.52423,
    "c": 0.14764,
    "h": 261.6
  },
  "luminance": 0.14033
}

Semantic roles & 50–950 ramp

primary

#3766BE

secondary

#CAB387

accent

#AB49DE

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3766BE

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

Preview Lab → · Contrast checker → · Palette generator →