#3765D1#3765D1

#3765D1 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.6% C 0.175 H 264.0°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#3765D1
RGB	rgb(55, 101, 209)
HSL	hsl(222, 63%, 52%)
HSV	hsv(222, 74%, 82%)
CMYK	cmyk(73.7%, 51.7%, 0%, 18%)
CIE-LAB	lab(45.25, 21.70, -60.36)
CIE-LCH	lch(45.25, 64.14, 289.78°)
OKLab	oklab(53.57% -0.0182 -0.1737)
OKLCH	oklch(53.57% 0.175 264)
XYZ	xyz(17.7338, 14.7211, 62.2161)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3765D1 #D1A337

analogous

#37B2D1 #3765D1 #5637D1

triadic

#3765D1 #D13765 #65D137

tetradic

#3765D1 #D137B2 #D1A337 #37D156

square

#3765D1 #D137B2 #D1A337 #37D156

split-complementary

#3765D1 #D15637 #B2D137

monochromatic

#1A3573 #264CA5 #3765D1 #698BDC #9BB2E8

Accessibility & contrast

On white

5.32

#3765D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#3765D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3765D1

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3765D1	#FFFFFF	#000000	##FFFFFF
##3765D1	1.00	5.32	3.94	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D73D5

Deuteranopia (green-blind)

#0064CF

Tritanopia (blue-blind)

#007F91

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3765d1;
/* rgb */ color: rgb(55, 101, 209);
/* oklch */ color: oklch(53.6% 0.175 264.0);

Tailwind

colors: {
  custom: {
    50: '#8290e0',
    500: '#3765d1',
    950: '#000000',
  },
}

SCSS

$custom: #3765d1;
$custom-light: #8290e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3765d1",
  "rgb": {
    "r": 55,
    "g": 101,
    "b": 209
  },
  "hsl": {
    "h": 222.078,
    "s": 62.602,
    "l": 51.765
  },
  "oklch": {
    "l": 0.53565,
    "c": 0.17463,
    "h": 264
  },
  "luminance": 0.14723
}

Semantic roles & 50–950 ramp

primary

#3765D1

secondary

#D4C090

accent

#B542E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3765D1

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

Preview Lab → · Contrast checker → · Palette generator →