#3C66C8#3C66C8

#3C66C8 is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.3% C 0.160 H 264.2°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#3C66C8
RGB	rgb(60, 102, 200)
HSL	hsl(222, 56%, 51%)
HSV	hsv(222, 70%, 78%)
CMYK	cmyk(70%, 49%, 0%, 21.6%)
CIE-LAB	lab(45.13, 18.44, -55.38)
CIE-LCH	lch(45.13, 58.37, 288.42°)
OKLab	oklab(53.34% -0.016 -0.1589)
OKLCH	oklch(53.34% 0.16 264.2)
XYZ	xyz(17.0365, 14.6318, 56.5588)
Luminance	0.1463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C66C8 #C89E3C

analogous

#3CACC8 #3C66C8 #583CC8

triadic

#3C66C8 #C83C66 #66C83C

tetradic

#3C66C8 #C83CAC #C89E3C #3CC858

square

#3C66C8 #C83CAC #C89E3C #3CC858

split-complementary

#3C66C8 #C8583C #ACC83C

monochromatic

#1E356B #2C4D9B #3C66C8 #6C8BD5 #9BB1E3

Accessibility & contrast

On white

5.35

#3C66C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#3C66C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3C66C8

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C66C8	#FFFFFF	#000000	##FFFFFF
##3C66C8	1.00	5.35	3.93	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F72CC

Deuteranopia (green-blind)

#0065C6

Tritanopia (blue-blind)

#007D8D

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3c66c8;
/* rgb */ color: rgb(60, 102, 200);
/* oklch */ color: oklch(53.3% 0.160 264.2);

Tailwind

colors: {
  custom: {
    50: '#8291d9',
    500: '#3c66c8',
    950: '#000000',
  },
}

SCSS

$custom: #3c66c8;
$custom-light: #8291d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3c66c8",
  "rgb": {
    "r": 60,
    "g": 102,
    "b": 200
  },
  "hsl": {
    "h": 222,
    "s": 56,
    "l": 50.98
  },
  "oklch": {
    "l": 0.53335,
    "c": 0.15974,
    "h": 264.2
  },
  "luminance": 0.14634
}

Semantic roles & 50–950 ramp

primary

#3C66C8

secondary

#CFBC91

accent

#B249DF

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3C66C8

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

Preview Lab → · Contrast checker → · Palette generator →