#3664BF#3664BF

#3664BF is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.0% C 0.152 H 262.3°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#3664BF
RGB	rgb(54, 100, 191)
HSL	hsl(220, 56%, 48%)
HSV	hsv(220, 72%, 75%)
CMYK	cmyk(71.7%, 47.6%, 0%, 25.1%)
CIE-LAB	lab(43.74, 15.55, -52.43)
CIE-LCH	lch(43.74, 54.68, 286.52°)
OKLab	oklab(52.02% -0.0204 -0.1504)
OKLCH	oklch(52.02% 0.152 262.3)
XYZ	xyz(15.4791, 13.6586, 51.1007)
Luminance	0.1366 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3664BF #BF9136

analogous

#36A8BF #3664BF #4C36BF

triadic

#3664BF #BF3664 #64BF36

tetradic

#3664BF #BF36A8 #BF9136 #36BF4C

square

#3664BF #BF36A8 #BF9136 #36BF4C

split-complementary

#3664BF #BF4C36 #A8BF36

monochromatic

#1B3260 #294B8F #3664BF #6086D2 #90ABE0

Accessibility & contrast

On white

5.63

#3664BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#3664BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3664BF

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3664BF	#FFFFFF	#000000	##FFFFFF
##3664BF	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#336EC2

Deuteranopia (green-blind)

#0E61BD

Tritanopia (blue-blind)

#007988

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3664bf;
/* rgb */ color: rgb(54, 100, 191);
/* oklch */ color: oklch(52.0% 0.152 262.3);

Tailwind

colors: {
  custom: {
    50: '#7e8fd3',
    500: '#3664bf',
    950: '#000000',
  },
}

SCSS

$custom: #3664bf;
$custom-light: #7e8fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3664bf",
  "rgb": {
    "r": 54,
    "g": 100,
    "b": 191
  },
  "hsl": {
    "h": 219.854,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.52019,
    "c": 0.15173,
    "h": 262.3
  },
  "luminance": 0.1366
}

Semantic roles & 50–950 ramp

primary

#3664BF

secondary

#CAB487

accent

#AD49DF

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3664BF

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

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