#3765CC#3765CC

#3765CC is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.2% C 0.168 H 263.6°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3765CC
RGB	rgb(55, 101, 204)
HSL	hsl(221, 59%, 51%)
HSV	hsv(221, 73%, 80%)
CMYK	cmyk(73%, 50.5%, 0%, 20%)
CIE-LAB	lab(44.91, 19.86, -58.04)
CIE-LCH	lch(44.91, 61.34, 288.89°)
OKLab	oklab(53.2% -0.0187 -0.1669)
OKLCH	oklch(53.2% 0.168 263.6)
XYZ	xyz(17.1244, 14.4774, 59.0069)
Luminance	0.1448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3765CC #CC9E37

analogous

#37AFCC #3765CC #5337CC

triadic

#3765CC #CC3765 #65CC37

tetradic

#3765CC #CC37AF #CC9E37 #37CC53

square

#3765CC #CC37AF #CC9E37 #37CC53

split-complementary

#3765CC #CC5337 #AFCC37

monochromatic

#1C356D #284C9E #3765CC #688BD8 #99B0E5

Accessibility & contrast

On white

5.39

#3765CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#3765CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3765CC

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3765CC	#FFFFFF	#000000	##FFFFFF
##3765CC	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2671D0

Deuteranopia (green-blind)

#0064CA

Tritanopia (blue-blind)

#007E8F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3765cc;
/* rgb */ color: rgb(55, 101, 204);
/* oklch */ color: oklch(53.2% 0.168 263.6);

Tailwind

colors: {
  custom: {
    50: '#8190dc',
    500: '#3765cc',
    950: '#000000',
  },
}

SCSS

$custom: #3765cc;
$custom-light: #8190dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3765cc",
  "rgb": {
    "r": 55,
    "g": 101,
    "b": 204
  },
  "hsl": {
    "h": 221.477,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.53198,
    "c": 0.16791,
    "h": 263.6
  },
  "luminance": 0.14479
}

Semantic roles & 50–950 ramp

primary

#3765CC

secondary

#D0BC8E

accent

#B245E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3765CC

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

Preview Lab → · Contrast checker → · Palette generator →