#3865CC#3865CC

#3865CC is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.2% C 0.168 H 263.9°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#3865CC
RGB	rgb(56, 101, 204)
HSL	hsl(222, 59%, 51%)
HSV	hsv(222, 73%, 80%)
CMYK	cmyk(72.5%, 50.5%, 0%, 20%)
CIE-LAB	lab(44.95, 19.99, -57.98)
CIE-LCH	lch(44.95, 61.32, 289.02°)
OKLab	oklab(53.24% -0.0179 -0.1666)
OKLCH	oklch(53.24% 0.168 263.9)
XYZ	xyz(17.1798, 14.5059, 59.0095)
Luminance	0.1451 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3865CC #CC9F38

analogous

#38AFCC #3865CC #5538CC

triadic

#3865CC #CC3865 #65CC38

tetradic

#3865CC #CC38AF #CC9F38 #38CC55

square

#3865CC #CC38AF #CC9F38 #38CC55

split-complementary

#3865CC #CC5538 #AFCC38

monochromatic

#1C356E #294C9E #3865CC #698BD8 #99B0E5

Accessibility & contrast

On white

5.38

#3865CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#3865CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3865CC

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3865CC	#FFFFFF	#000000	##FFFFFF
##3865CC	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2672D0

Deuteranopia (green-blind)

#0064CA

Tritanopia (blue-blind)

#007E8F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3865cc;
/* rgb */ color: rgb(56, 101, 204);
/* oklch */ color: oklch(53.2% 0.168 263.9);

Tailwind

colors: {
  custom: {
    50: '#8190dc',
    500: '#3865cc',
    950: '#000000',
  },
}

SCSS

$custom: #3865cc;
$custom-light: #8190dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3865cc",
  "rgb": {
    "r": 56,
    "g": 101,
    "b": 204
  },
  "hsl": {
    "h": 221.757,
    "s": 59.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.53239,
    "c": 0.1676,
    "h": 263.9
  },
  "luminance": 0.14508
}

Semantic roles & 50–950 ramp

primary

#3865CC

secondary

#D1BD8F

accent

#B345E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3865CC

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

Preview Lab → · Contrast checker → · Palette generator →