#3865BA#3865BA

#3865BA is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.0% C 0.143 H 261.8°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#3865BA
RGB	rgb(56, 101, 186)
HSL	hsl(219, 54%, 47%)
HSV	hsv(219, 70%, 73%)
CMYK	cmyk(69.9%, 45.7%, 0%, 27.1%)
CIE-LAB	lab(43.79, 13.36, -49.44)
CIE-LCH	lch(43.79, 51.21, 285.12°)
OKLab	oklab(51.98% -0.0205 -0.1415)
OKLCH	oklch(51.98% 0.143 261.8)
XYZ	xyz(15.1443, 13.6917, 48.2895)
Luminance	0.1369 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3865BA #BA8D38

analogous

#38A6BA #3865BA #4C38BA

triadic

#3865BA #BA3865 #65BA38

tetradic

#3865BA #BA38A6 #BA8D38 #38BA4C

square

#3865BA #BA38A6 #BA8D38 #38BA4C

split-complementary

#3865BA #BA4C38 #A6BA38

monochromatic

#1C325C #2A4B8B #3865BA #6087CF #8FAADD

Accessibility & contrast

On white

5.62

#3865BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#3865BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3865BA

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3865BA	#FFFFFF	#000000	##FFFFFF
##3865BA	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A6EBD

Deuteranopia (green-blind)

#2062B8

Tritanopia (blue-blind)

#007986

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3865ba;
/* rgb */ color: rgb(56, 101, 186);
/* oklch */ color: oklch(52.0% 0.143 261.8);

Tailwind

colors: {
  custom: {
    50: '#7e90cf',
    500: '#3865ba',
    950: '#000000',
  },
}

SCSS

$custom: #3865ba;
$custom-light: #7e90cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3865ba",
  "rgb": {
    "r": 56,
    "g": 101,
    "b": 186
  },
  "hsl": {
    "h": 219.231,
    "s": 53.719,
    "l": 47.451
  },
  "oklch": {
    "l": 0.51977,
    "c": 0.14301,
    "h": 261.8
  },
  "luminance": 0.13693
}

Semantic roles & 50–950 ramp

primary

#3865BA

secondary

#C8B186

accent

#AA4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3865BA

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

Preview Lab → · Contrast checker → · Palette generator →