#3766AE#3766AE

#3766AE is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.4% C 0.126 H 258.7°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3766AE
RGB	rgb(55, 102, 174)
HSL	hsl(216, 52%, 45%)
HSV	hsv(216, 68%, 68%)
CMYK	cmyk(68.4%, 41.4%, 0%, 31.8%)
CIE-LAB	lab(43.31, 8.17, -43.18)
CIE-LCH	lch(43.31, 43.95, 280.71°)
OKLab	oklab(51.37% -0.0246 -0.1231)
OKLCH	oklch(51.37% 0.126 258.7)
XYZ	xyz(13.9642, 13.3695, 41.8808)
Luminance	0.1337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3766AE #AE7F37

analogous

#37A1AE #3766AE #4437AE

triadic

#3766AE #AE3766 #66AE37

tetradic

#3766AE #AE37A1 #AE7F37 #37AE44

square

#3766AE #AE37A1 #AE7F37 #37AE44

split-complementary

#3766AE #AE4437 #A1AE37

monochromatic

#1A2F51 #284B7F #3766AE #5885CA #86A7D9

Accessibility & contrast

On white

5.72

#3766AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3766AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3766AE

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3766AE	#FFFFFF	#000000	##FFFFFF
##3766AE	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456CB1

Deuteranopia (green-blind)

#3261AD

Tritanopia (blue-blind)

#007781

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3766ae;
/* rgb */ color: rgb(55, 102, 174);
/* oklch */ color: oklch(51.4% 0.126 258.7);

Tailwind

colors: {
  custom: {
    50: '#7b91c6',
    500: '#3766ae',
    950: '#000000',
  },
}

SCSS

$custom: #3766ae;
$custom-light: #7b91c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3766ae",
  "rgb": {
    "r": 55,
    "g": 102,
    "b": 174
  },
  "hsl": {
    "h": 216.303,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51369,
    "c": 0.12558,
    "h": 258.7
  },
  "luminance": 0.13371
}

Semantic roles & 50–950 ramp

primary

#3766AE

secondary

#C3A87E

accent

#A34CDB

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3766AE

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

Preview Lab → · Contrast checker → · Palette generator →