#3668BF#3668BF

#3668BF is a mid, vivid blue. Relative luminance 0.144; OKLCH L 52.9% C 0.147 H 260.6°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#3668BF
RGB	rgb(54, 104, 191)
HSL	hsl(218, 56%, 48%)
HSV	hsv(218, 72%, 75%)
CMYK	cmyk(71.7%, 45.5%, 0%, 25.1%)
CIE-LAB	lab(44.86, 12.99, -50.62)
CIE-LCH	lch(44.86, 52.26, 284.40°)
OKLab	oklab(52.88% -0.0239 -0.145)
OKLCH	oklch(52.88% 0.147 260.6)
XYZ	xyz(15.8722, 14.4448, 51.2317)
Luminance	0.1445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3668BF #BF8D36

analogous

#36ACBF #3668BF #4836BF

triadic

#3668BF #BF3668 #68BF36

tetradic

#3668BF #BF36AC #BF8D36 #36BF48

square

#3668BF #BF36AC #BF8D36 #36BF48

split-complementary

#3668BF #BF4836 #ACBF36

monochromatic

#1B3460 #294E8F #3668BF #608AD2 #90ADE0

Accessibility & contrast

On white

5.40

#3668BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#3668BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3668BF

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3668BF	#FFFFFF	#000000	##FFFFFF
##3668BF	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C71C2

Deuteranopia (green-blind)

#1F64BD

Tritanopia (blue-blind)

#007C8A

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3668bf;
/* rgb */ color: rgb(54, 104, 191);
/* oklch */ color: oklch(52.9% 0.147 260.6);

Tailwind

colors: {
  custom: {
    50: '#7e92d3',
    500: '#3668bf',
    950: '#000000',
  },
}

SCSS

$custom: #3668bf;
$custom-light: #7e92d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3668bf",
  "rgb": {
    "r": 54,
    "g": 104,
    "b": 191
  },
  "hsl": {
    "h": 218.102,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.52883,
    "c": 0.14694,
    "h": 260.6
  },
  "luminance": 0.14446
}

Semantic roles & 50–950 ramp

primary

#3668BF

secondary

#CAB287

accent

#A849DF

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3668BF

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

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