#3668C1#3668C1

#3668C1 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.0% C 0.150 H 260.9°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3668C1
RGB	rgb(54, 104, 193)
HSL	hsl(218, 56%, 48%)
HSV	hsv(218, 72%, 76%)
CMYK	cmyk(72%, 46.1%, 0%, 24.3%)
CIE-LAB	lab(44.99, 13.73, -51.58)
CIE-LCH	lch(44.99, 53.37, 284.91°)
OKLab	oklab(53.02% -0.0236 -0.1478)
OKLCH	oklch(53.02% 0.15 260.9)
XYZ	xyz(16.0938, 14.5334, 52.3988)
Luminance	0.1454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3668C1 #C18F36

analogous

#36ADC1 #3668C1 #4936C1

triadic

#3668C1 #C13668 #68C136

tetradic

#3668C1 #C136AD #C18F36 #36C149

square

#3668C1 #C136AD #C18F36 #36C149

split-complementary

#3668C1 #C14936 #ADC136

monochromatic

#1B3461 #294E91 #3668C1 #618AD3 #91AEE0

Accessibility & contrast

On white

5.37

#3668C1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#3668C1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3668C1

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3668C1	#FFFFFF	#000000	##FFFFFF
##3668C1	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A71C4

Deuteranopia (green-blind)

#1B64BF

Tritanopia (blue-blind)

#007D8B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3668c1;
/* rgb */ color: rgb(54, 104, 193);
/* oklch */ color: oklch(53.0% 0.150 260.9);

Tailwind

colors: {
  custom: {
    50: '#7e92d4',
    500: '#3668c1',
    950: '#000000',
  },
}

SCSS

$custom: #3668c1;
$custom-light: #7e92d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3668c1",
  "rgb": {
    "r": 54,
    "g": 104,
    "b": 193
  },
  "hsl": {
    "h": 218.417,
    "s": 56.275,
    "l": 48.431
  },
  "oklch": {
    "l": 0.53019,
    "c": 0.14967,
    "h": 260.9
  },
  "luminance": 0.14535
}

Semantic roles & 50–950 ramp

primary

#3668C1

secondary

#CBB388

accent

#A948E0

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3668C1

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

Preview Lab → · Contrast checker → · Palette generator →