#3668BA#3668BA

#3668BA is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.5% C 0.140 H 259.8°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#3668BA
RGB	rgb(54, 104, 186)
HSL	hsl(217, 55%, 47%)
HSV	hsv(217, 71%, 73%)
CMYK	cmyk(71%, 44.1%, 0%, 27.1%)
CIE-LAB	lab(44.56, 11.15, -48.21)
CIE-LCH	lch(44.56, 49.48, 283.02°)
OKLab	oklab(52.55% -0.0248 -0.1379)
OKLCH	oklch(52.55% 0.14 259.8)
XYZ	xyz(15.3314, 14.2284, 48.3832)
Luminance	0.1423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3668BA #BA8836

analogous

#36AABA #3668BA #4636BA

triadic

#3668BA #BA3668 #68BA36

tetradic

#3668BA #BA36AA #BA8836 #36BA46

square

#3668BA #BA36AA #BA8836 #36BA46

split-complementary

#3668BA #BA4636 #AABA36

monochromatic

#1A335B #284D8B #3668BA #5D89D0 #8DABDE

Accessibility & contrast

On white

5.46

#3668BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3668BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3668BA

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3668BA	#FFFFFF	#000000	##FFFFFF
##3668BA	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4070BD

Deuteranopia (green-blind)

#2864B8

Tritanopia (blue-blind)

#007B88

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3668ba;
/* rgb */ color: rgb(54, 104, 186);
/* oklch */ color: oklch(52.5% 0.140 259.8);

Tailwind

colors: {
  custom: {
    50: '#7d92cf',
    500: '#3668ba',
    950: '#000000',
  },
}

SCSS

$custom: #3668ba;
$custom-light: #7d92cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3668ba",
  "rgb": {
    "r": 54,
    "g": 104,
    "b": 186
  },
  "hsl": {
    "h": 217.273,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.52549,
    "c": 0.14011,
    "h": 259.8
  },
  "luminance": 0.1423
}

Semantic roles & 50–950 ramp

primary

#3668BA

secondary

#C8AE84

accent

#A649DE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3668BA

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

Preview Lab → · Contrast checker → · Palette generator →