#3863B9#3863B9

#3863B9 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.5% C 0.144 H 262.5°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#3863B9
RGB	rgb(56, 99, 185)
HSL	hsl(220, 54%, 47%)
HSV	hsv(220, 70%, 73%)
CMYK	cmyk(69.7%, 46.5%, 0%, 27.5%)
CIE-LAB	lab(43.16, 14.27, -49.86)
CIE-LCH	lch(43.16, 51.86, 285.97°)
OKLab	oklab(51.48% -0.0188 -0.1428)
OKLCH	oklch(51.48% 0.144 262.5)
XYZ	xyz(14.8466, 13.2657, 47.6676)
Luminance	0.1327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3863B9 #B98E38

analogous

#38A4B9 #3863B9 #4E38B9

triadic

#3863B9 #B93863 #63B938

tetradic

#3863B9 #B938A4 #B98E38 #38B94E

square

#3863B9 #B938A4 #B98E38 #38B94E

split-complementary

#3863B9 #B94E38 #A4B938

monochromatic

#1C315B #2A4A8A #3863B9 #5F85CF #8EA9DD

Accessibility & contrast

On white

5.75

#3863B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#3863B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3863B9

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3863B9	#FFFFFF	#000000	##FFFFFF
##3863B9	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376CBC

Deuteranopia (green-blind)

#1C60B7

Tritanopia (blue-blind)

#007785

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3863b9;
/* rgb */ color: rgb(56, 99, 185);
/* oklch */ color: oklch(51.5% 0.144 262.5);

Tailwind

colors: {
  custom: {
    50: '#7e8ece',
    500: '#3863b9',
    950: '#000000',
  },
}

SCSS

$custom: #3863b9;
$custom-light: #7e8ece;
$custom-dark: #000000;

JSON

{
  "hex": "#3863b9",
  "rgb": {
    "r": 56,
    "g": 99,
    "b": 185
  },
  "hsl": {
    "h": 220,
    "s": 53.527,
    "l": 47.255
  },
  "oklch": {
    "l": 0.51476,
    "c": 0.14403,
    "h": 262.5
  },
  "luminance": 0.13267
}

Semantic roles & 50–950 ramp

primary

#3863B9

secondary

#C8B185

accent

#AC4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3863B9

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

Preview Lab → · Contrast checker → · Palette generator →