#3864BC#3864BC

#3864BC is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.9% C 0.147 H 262.5°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#3864BC
RGB	rgb(56, 100, 188)
HSL	hsl(220, 54%, 48%)
HSV	hsv(220, 70%, 74%)
CMYK	cmyk(70.2%, 46.8%, 0%, 26.3%)
CIE-LAB	lab(43.63, 14.74, -50.85)
CIE-LCH	lch(43.63, 52.94, 286.16°)
OKLab	oklab(51.9% -0.0192 -0.1457)
OKLCH	oklch(51.9% 0.147 262.5)
XYZ	xyz(15.2619, 13.5844, 49.3849)
Luminance	0.1359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3864BC #BC9038

analogous

#38A6BC #3864BC #4E38BC

triadic

#3864BC #BC3864 #64BC38

tetradic

#3864BC #BC38A6 #BC9038 #38BC4E

square

#3864BC #BC38A6 #BC9038 #38BC4E

split-complementary

#3864BC #BC4E38 #A6BC38

monochromatic

#1C325E #2A4B8D #3864BC #6186D0 #90AADE

Accessibility & contrast

On white

5.65

#3864BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#3864BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3864BC

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3864BC	#FFFFFF	#000000	##FFFFFF
##3864BC	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366EBF

Deuteranopia (green-blind)

#1961BA

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3864bc;
/* rgb */ color: rgb(56, 100, 188);
/* oklch */ color: oklch(51.9% 0.147 262.5);

Tailwind

colors: {
  custom: {
    50: '#7e8fd1',
    500: '#3864bc',
    950: '#000000',
  },
}

SCSS

$custom: #3864bc;
$custom-light: #7e8fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3864bc",
  "rgb": {
    "r": 56,
    "g": 100,
    "b": 188
  },
  "hsl": {
    "h": 220,
    "s": 54.098,
    "l": 47.843
  },
  "oklch": {
    "l": 0.51897,
    "c": 0.14697,
    "h": 262.5
  },
  "luminance": 0.13586
}

Semantic roles & 50–950 ramp

primary

#3864BC

secondary

#C9B387

accent

#AC4ADD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3864BC

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

Preview Lab → · Contrast checker → · Palette generator →