#3768CE#3768CE

#3768CE is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.0% C 0.167 H 262.8°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#3768CE
RGB	rgb(55, 104, 206)
HSL	hsl(221, 61%, 51%)
HSV	hsv(221, 73%, 81%)
CMYK	cmyk(73.3%, 49.5%, 0%, 19.2%)
CIE-LAB	lab(45.86, 18.68, -57.65)
CIE-LCH	lch(45.86, 60.60, 287.95°)
OKLab	oklab(53.97% -0.0209 -0.1657)
OKLCH	oklch(53.97% 0.167 262.8)
XYZ	xyz(17.6625, 15.1672, 60.3773)
Luminance	0.1517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3768CE #CE9D37

analogous

#37B3CE #3768CE #5137CE

triadic

#3768CE #CE3768 #68CE37

tetradic

#3768CE #CE37B3 #CE9D37 #37CE51

square

#3768CE #CE37B3 #CE9D37 #37CE51

split-complementary

#3768CE #CE5137 #B3CE37

monochromatic

#1B376F #274FA0 #3768CE #688DDA #99B2E6

Accessibility & contrast

On white

5.21

#3768CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#3768CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3768CE

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3768CE	#FFFFFF	#000000	##FFFFFF
##3768CE	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C74D2

Deuteranopia (green-blind)

#0066CC

Tritanopia (blue-blind)

#008091

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3768ce;
/* rgb */ color: rgb(55, 104, 206);
/* oklch */ color: oklch(54.0% 0.167 262.8);

Tailwind

colors: {
  custom: {
    50: '#8192de',
    500: '#3768ce',
    950: '#000000',
  },
}

SCSS

$custom: #3768ce;
$custom-light: #8192de;
$custom-dark: #000000;

JSON

{
  "hex": "#3768ce",
  "rgb": {
    "r": 55,
    "g": 104,
    "b": 206
  },
  "hsl": {
    "h": 220.53,
    "s": 60.643,
    "l": 51.176
  },
  "oklch": {
    "l": 0.53967,
    "c": 0.16698,
    "h": 262.8
  },
  "luminance": 0.15169
}

Semantic roles & 50–950 ramp

primary

#3768CE

secondary

#D2BC8F

accent

#B044E4

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3768CE

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

Preview Lab → · Contrast checker → · Palette generator →