#3865BF#3865BF

#3865BF is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.3% C 0.150 H 262.5°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#3865BF
RGB	rgb(56, 101, 191)
HSL	hsl(220, 55%, 48%)
HSV	hsv(220, 71%, 75%)
CMYK	cmyk(70.7%, 47.1%, 0%, 25.1%)
CIE-LAB	lab(44.10, 15.20, -51.84)
CIE-LCH	lch(44.10, 54.02, 286.34°)
OKLab	oklab(52.32% -0.0197 -0.1486)
OKLCH	oklch(52.32% 0.15 262.5)
XYZ	xyz(15.6852, 13.9081, 51.1380)
Luminance	0.1391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3865BF #BF9238

analogous

#38A8BF #3865BF #4E38BF

triadic

#3865BF #BF3865 #65BF38

tetradic

#3865BF #BF38A8 #BF9238 #38BF4E

square

#3865BF #BF38A8 #BF9238 #38BF4E

split-complementary

#3865BF #BF4E38 #A8BF38

monochromatic

#1C3360 #2A4C90 #3865BF #6388D1 #92ACDF

Accessibility & contrast

On white

5.55

#3865BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#3865BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3865BF

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3865BF	#FFFFFF	#000000	##FFFFFF
##3865BF	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366FC2

Deuteranopia (green-blind)

#1562BD

Tritanopia (blue-blind)

#007A89

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3865bf;
/* rgb */ color: rgb(56, 101, 191);
/* oklch */ color: oklch(52.3% 0.150 262.5);

Tailwind

colors: {
  custom: {
    50: '#7f90d3',
    500: '#3865bf',
    950: '#000000',
  },
}

SCSS

$custom: #3865bf;
$custom-light: #7f90d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3865bf",
  "rgb": {
    "r": 56,
    "g": 101,
    "b": 191
  },
  "hsl": {
    "h": 220,
    "s": 54.656,
    "l": 48.431
  },
  "oklch": {
    "l": 0.52319,
    "c": 0.14989,
    "h": 262.5
  },
  "luminance": 0.1391
}

Semantic roles & 50–950 ramp

primary

#3865BF

secondary

#CAB489

accent

#AD4ADE

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3865BF

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

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