#3667CC#3667CC

#3667CC is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.6% C 0.166 H 262.7°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#3667CC
RGB	rgb(54, 103, 204)
HSL	hsl(220, 60%, 51%)
HSV	hsv(220, 74%, 80%)
CMYK	cmyk(73.5%, 49.5%, 0%, 20%)
CIE-LAB	lab(45.42, 18.45, -57.22)
CIE-LCH	lch(45.42, 60.12, 287.87°)
OKLab	oklab(53.57% -0.0211 -0.1644)
OKLCH	oklch(53.57% 0.166 262.7)
XYZ	xyz(17.2668, 14.8425, 59.0699)
Luminance	0.1484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3667CC #CC9B36

analogous

#36B2CC #3667CC #5036CC

triadic

#3667CC #CC3667 #67CC36

tetradic

#3667CC #CC36B2 #CC9B36 #36CC50

square

#3667CC #CC36B2 #CC9B36 #36CC50

split-complementary

#3667CC #CC5036 #B2CC36

monochromatic

#1B366C #284E9D #3667CC #678CD8 #98B1E5

Accessibility & contrast

On white

5.29

#3667CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#3667CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3667CC

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3667CC	#FFFFFF	#000000	##FFFFFF
##3667CC	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C73D0

Deuteranopia (green-blind)

#0065CA

Tritanopia (blue-blind)

#007F90

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3667cc;
/* rgb */ color: rgb(54, 103, 204);
/* oklch */ color: oklch(53.6% 0.166 262.7);

Tailwind

colors: {
  custom: {
    50: '#8191dc',
    500: '#3667cc',
    950: '#000000',
  },
}

SCSS

$custom: #3667cc;
$custom-light: #8191dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3667cc",
  "rgb": {
    "r": 54,
    "g": 103,
    "b": 204
  },
  "hsl": {
    "h": 220.4,
    "s": 59.524,
    "l": 50.588
  },
  "oklch": {
    "l": 0.53574,
    "c": 0.16578,
    "h": 262.7
  },
  "luminance": 0.14844
}

Semantic roles & 50–950 ramp

primary

#3667CC

secondary

#D0BA8E

accent

#AF45E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3667CC

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

Preview Lab → · Contrast checker → · Palette generator →