#3668CD#3668CD

#3668CD is a mid, vivid blue. Relative luminance 0.151; OKLCH L 53.9% C 0.166 H 262.5°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#3668CD
RGB	rgb(54, 104, 205)
HSL	hsl(220, 60%, 51%)
HSV	hsv(220, 74%, 80%)
CMYK	cmyk(73.7%, 49.3%, 0%, 19.6%)
CIE-LAB	lab(45.76, 18.18, -57.25)
CIE-LCH	lch(45.76, 60.07, 287.62°)
OKLab	oklab(53.86% -0.0218 -0.1645)
OKLCH	oklch(53.86% 0.166 262.5)
XYZ	xyz(17.4871, 15.0908, 59.7370)
Luminance	0.1509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3668CD #CD9B36

analogous

#36B4CD #3668CD #4F36CD

triadic

#3668CD #CD3668 #68CD36

tetradic

#3668CD #CD36B4 #CD9B36 #36CD4F

square

#3668CD #CD36B4 #CD9B36 #36CD4F

split-complementary

#3668CD #CD4F36 #B4CD36

monochromatic

#1B366D #274F9E #3668CD #678DD9 #98B2E5

Accessibility & contrast

On white

5.23

#3668CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#3668CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3668CD

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3668CD	#FFFFFF	#000000	##FFFFFF
##3668CD	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D74D1

Deuteranopia (green-blind)

#0066CB

Tritanopia (blue-blind)

#008091

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3668cd;
/* rgb */ color: rgb(54, 104, 205);
/* oklch */ color: oklch(53.9% 0.166 262.5);

Tailwind

colors: {
  custom: {
    50: '#8192dd',
    500: '#3668cd',
    950: '#000000',
  },
}

SCSS

$custom: #3668cd;
$custom-light: #8192dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3668cd",
  "rgb": {
    "r": 54,
    "g": 104,
    "b": 205
  },
  "hsl": {
    "h": 220.132,
    "s": 60.159,
    "l": 50.784
  },
  "oklch": {
    "l": 0.53856,
    "c": 0.16593,
    "h": 262.5
  },
  "luminance": 0.15093
}

Semantic roles & 50–950 ramp

primary

#3668CD

secondary

#D1BB8E

accent

#AF44E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3668CD

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

Preview Lab → · Contrast checker → · Palette generator →