#3865CF#3865CF

#3865CF is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.5% C 0.172 H 264.1°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#3865CF
RGB	rgb(56, 101, 207)
HSL	hsl(222, 61%, 52%)
HSV	hsv(222, 73%, 81%)
CMYK	cmyk(72.9%, 51.2%, 0%, 18.8%)
CIE-LAB	lab(45.15, 21.09, -59.37)
CIE-LCH	lch(45.15, 63.00, 289.56°)
OKLab	oklab(53.46% -0.0176 -0.1708)
OKLCH	oklch(53.46% 0.172 264.1)
XYZ	xyz(17.5431, 14.6512, 60.9228)
Luminance	0.1465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3865CF #CFA238

analogous

#38B1CF #3865CF #5738CF

triadic

#3865CF #CF3865 #65CF38

tetradic

#3865CF #CF38B1 #CFA238 #38CF57

square

#3865CF #CF38B1 #CFA238 #38CF57

split-complementary

#3865CF #CF5738 #B1CF38

monochromatic

#1B3571 #274CA3 #3865CF #698BDB #9BB1E7

Accessibility & contrast

On white

5.34

#3865CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#3865CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3865CF

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3865CF	#FFFFFF	#000000	##FFFFFF
##3865CF	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2172D3

Deuteranopia (green-blind)

#0064CD

Tritanopia (blue-blind)

#007E90

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3865cf;
/* rgb */ color: rgb(56, 101, 207);
/* oklch */ color: oklch(53.5% 0.172 264.1);

Tailwind

colors: {
  custom: {
    50: '#8290de',
    500: '#3865cf',
    950: '#000000',
  },
}

SCSS

$custom: #3865cf;
$custom-light: #8290de;
$custom-dark: #000000;

JSON

{
  "hex": "#3865cf",
  "rgb": {
    "r": 56,
    "g": 101,
    "b": 207
  },
  "hsl": {
    "h": 222.119,
    "s": 61.134,
    "l": 51.569
  },
  "oklch": {
    "l": 0.53458,
    "c": 0.17165,
    "h": 264.1
  },
  "luminance": 0.14653
}

Semantic roles & 50–950 ramp

primary

#3865CF

secondary

#D3BF90

accent

#B444E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3865CF

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

Preview Lab → · Contrast checker → · Palette generator →