#3861BB#3861BB

#3861BB is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.2% C 0.149 H 263.6°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#3861BB
RGB	rgb(56, 97, 187)
HSL	hsl(221, 54%, 48%)
HSV	hsv(221, 70%, 73%)
CMYK	cmyk(70.1%, 48.1%, 0%, 26.7%)
CIE-LAB	lab(42.73, 16.29, -51.72)
CIE-LCH	lch(42.73, 54.23, 287.49°)
OKLab	oklab(51.19% -0.0167 -0.1483)
OKLCH	oklch(51.19% 0.149 263.6)
XYZ	xyz(14.8721, 12.9765, 48.7250)
Luminance	0.1298 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3861BB #BB9238

analogous

#38A3BB #3861BB #5038BB

triadic

#3861BB #BB3861 #61BB38

tetradic

#3861BB #BB38A3 #BB9238 #38BB50

square

#3861BB #BB38A3 #BB9238 #38BB50

split-complementary

#3861BB #BB5038 #A3BB38

monochromatic

#1C305D #2A498C #3861BB #6183D0 #90A8DE

Accessibility & contrast

On white

5.84

#3861BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#3861BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3861BB

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3861BB	#FFFFFF	#000000	##FFFFFF
##3861BB	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#306BBE

Deuteranopia (green-blind)

#0D5FB9

Tritanopia (blue-blind)

#007685

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3861bb;
/* rgb */ color: rgb(56, 97, 187);
/* oklch */ color: oklch(51.2% 0.149 263.6);

Tailwind

colors: {
  custom: {
    50: '#7e8dd0',
    500: '#3861bb',
    950: '#000000',
  },
}

SCSS

$custom: #3861bb;
$custom-light: #7e8dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3861bb",
  "rgb": {
    "r": 56,
    "g": 97,
    "b": 187
  },
  "hsl": {
    "h": 221.221,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.51185,
    "c": 0.14924,
    "h": 263.6
  },
  "luminance": 0.12978
}

Semantic roles & 50–950 ramp

primary

#3861BB

secondary

#C8B486

accent

#AF4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3861BB

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

Preview Lab → · Contrast checker → · Palette generator →