#3767CC#3767CC

#3767CC is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.6% C 0.165 H 262.9°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3767CC
RGB	rgb(55, 103, 204)
HSL	hsl(221, 59%, 51%)
HSV	hsv(221, 73%, 80%)
CMYK	cmyk(73%, 49.5%, 0%, 20%)
CIE-LAB	lab(45.46, 18.58, -57.16)
CIE-LCH	lch(45.46, 60.10, 288.00°)
OKLab	oklab(53.61% -0.0204 -0.1642)
OKLCH	oklch(53.61% 0.165 262.9)
XYZ	xyz(17.3210, 14.8705, 59.0725)
Luminance	0.1487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3767CC #CC9C37

analogous

#37B2CC #3767CC #5137CC

triadic

#3767CC #CC3767 #67CC37

tetradic

#3767CC #CC37B2 #CC9C37 #37CC51

square

#3767CC #CC37B2 #CC9C37 #37CC51

split-complementary

#3767CC #CC5137 #B2CC37

monochromatic

#1C366D #284E9E #3767CC #688CD8 #99B1E5

Accessibility & contrast

On white

5.28

#3767CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#3767CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3767CC

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3767CC	#FFFFFF	#000000	##FFFFFF
##3767CC	1.00	5.28	3.97	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C73D0

Deuteranopia (green-blind)

#0065CA

Tritanopia (blue-blind)

#007F90

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3767cc;
/* rgb */ color: rgb(55, 103, 204);
/* oklch */ color: oklch(53.6% 0.165 262.9);

Tailwind

colors: {
  custom: {
    50: '#8191dc',
    500: '#3767cc',
    950: '#000000',
  },
}

SCSS

$custom: #3767cc;
$custom-light: #8191dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3767cc",
  "rgb": {
    "r": 55,
    "g": 103,
    "b": 204
  },
  "hsl": {
    "h": 220.671,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.53614,
    "c": 0.16549,
    "h": 262.9
  },
  "luminance": 0.14872
}

Semantic roles & 50–950 ramp

primary

#3767CC

secondary

#D0BB8E

accent

#B045E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3767CC

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

Preview Lab → · Contrast checker → · Palette generator →