#3766AA#3766AA

#3766AA is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.1% C 0.120 H 257.8°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3766AA
RGB	rgb(55, 102, 170)
HSL	hsl(215, 51%, 44%)
HSV	hsv(215, 68%, 67%)
CMYK	cmyk(67.6%, 40%, 0%, 33.3%)
CIE-LAB	lab(43.09, 6.71, -41.20)
CIE-LCH	lch(43.09, 41.74, 279.25°)
OKLab	oklab(51.12% -0.0255 -0.1173)
OKLCH	oklch(51.12% 0.12 257.8)
XYZ	xyz(13.5800, 13.2159, 39.8577)
Luminance	0.1322 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3766AA #AA7B37

analogous

#37A0AA #3766AA #4237AA

triadic

#3766AA #AA3766 #66AA37

tetradic

#3766AA #AA37A0 #AA7B37 #37AA42

square

#3766AA #AA37A0 #AA7B37 #37AA42

split-complementary

#3766AA #AA4237 #A0AA37

monochromatic

#192F4E #284A7C #3766AA #5685C8 #84A6D7

Accessibility & contrast

On white

5.76

#3766AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#3766AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3766AA

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3766AA	#FFFFFF	#000000	##FFFFFF
##3766AA	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#476CAD

Deuteranopia (green-blind)

#3661A9

Tritanopia (blue-blind)

#007680

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3766aa;
/* rgb */ color: rgb(55, 102, 170);
/* oklch */ color: oklch(51.1% 0.120 257.8);

Tailwind

colors: {
  custom: {
    50: '#7a91c4',
    500: '#3766aa',
    950: '#000000',
  },
}

SCSS

$custom: #3766aa;
$custom-light: #7a91c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3766aa",
  "rgb": {
    "r": 55,
    "g": 102,
    "b": 170
  },
  "hsl": {
    "h": 215.478,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51118,
    "c": 0.12005,
    "h": 257.8
  },
  "luminance": 0.13217
}

Semantic roles & 50–950 ramp

primary

#3766AA

secondary

#C1A57C

accent

#A14DDB

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3766AA

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

Preview Lab → · Contrast checker → · Palette generator →