#3766C3#3766C3

#3766C3 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.8% C 0.154 H 262.3°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#3766C3
RGB	rgb(55, 102, 195)
HSL	hsl(220, 56%, 49%)
HSV	hsv(220, 72%, 76%)
CMYK	cmyk(71.8%, 47.7%, 0%, 23.5%)
CIE-LAB	lab(44.59, 15.89, -53.36)
CIE-LCH	lch(44.59, 55.68, 286.58°)
OKLab	oklab(52.77% -0.0207 -0.1531)
OKLCH	oklch(52.77% 0.154 262.3)
XYZ	xyz(16.1737, 14.2534, 53.5180)
Luminance	0.1426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3766C3 #C39437

analogous

#37ACC3 #3766C3 #4E37C3

triadic

#3766C3 #C33766 #66C337

tetradic

#3766C3 #C337AC #C39437 #37C34E

square

#3766C3 #C337AC #C39437 #37C34E

split-complementary

#3766C3 #C34E37 #ACC337

monochromatic

#1C3464 #2A4D93 #3766C3 #6489D3 #94AEE1

Accessibility & contrast

On white

5.45

#3766C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3766C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3766C3

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3766C3	#FFFFFF	#000000	##FFFFFF
##3766C3	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3470C6

Deuteranopia (green-blind)

#0D63C1

Tritanopia (blue-blind)

#007C8B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3766c3;
/* rgb */ color: rgb(55, 102, 195);
/* oklch */ color: oklch(52.8% 0.154 262.3);

Tailwind

colors: {
  custom: {
    50: '#7f91d6',
    500: '#3766c3',
    950: '#000000',
  },
}

SCSS

$custom: #3766c3;
$custom-light: #7f91d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3766c3",
  "rgb": {
    "r": 55,
    "g": 102,
    "b": 195
  },
  "hsl": {
    "h": 219.857,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.52767,
    "c": 0.15448,
    "h": 262.3
  },
  "luminance": 0.14255
}

Semantic roles & 50–950 ramp

primary

#3766C3

secondary

#CCB68A

accent

#AD49DF

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3766C3

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

Preview Lab → · Contrast checker → · Palette generator →