#3C66CE#3C66CE

#3C66CE is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.8% C 0.168 H 264.8°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3C66CE
RGB	rgb(60, 102, 206)
HSL	hsl(223, 60%, 52%)
HSV	hsv(223, 71%, 81%)
CMYK	cmyk(70.9%, 50.5%, 0%, 19.2%)
CIE-LAB	lab(45.52, 20.63, -58.19)
CIE-LCH	lch(45.52, 61.74, 289.52°)
OKLab	oklab(53.76% -0.0153 -0.1672)
OKLCH	oklch(53.76% 0.168 264.8)
XYZ	xyz(17.7515, 14.9178, 60.3244)
Luminance	0.1492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C66CE #CEA43C

analogous

#3CAFCE #3C66CE #5B3CCE

triadic

#3C66CE #CE3C66 #66CE3C

tetradic

#3C66CE #CE3CAF #CEA43C #3CCE5B

square

#3C66CE #CE3CAF #CEA43C #3CCE5B

split-complementary

#3C66CE #CE5B3C #AFCE3C

monochromatic

#1D3673 #294CA4 #3C66CE #6D8CDA #9EB3E7

Accessibility & contrast

On white

5.27

#3C66CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#3C66CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3C66CE

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C66CE	#FFFFFF	#000000	##FFFFFF
##3C66CE	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2773D2

Deuteranopia (green-blind)

#0065CC

Tritanopia (blue-blind)

#007F90

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3c66ce;
/* rgb */ color: rgb(60, 102, 206);
/* oklch */ color: oklch(53.8% 0.168 264.8);

Tailwind

colors: {
  custom: {
    50: '#8391de',
    500: '#3c66ce',
    950: '#000000',
  },
}

SCSS

$custom: #3c66ce;
$custom-light: #8391de;
$custom-dark: #000000;

JSON

{
  "hex": "#3c66ce",
  "rgb": {
    "r": 60,
    "g": 102,
    "b": 206
  },
  "hsl": {
    "h": 222.74,
    "s": 59.836,
    "l": 52.157
  },
  "oklch": {
    "l": 0.53763,
    "c": 0.16789,
    "h": 264.8
  },
  "luminance": 0.1492
}

Semantic roles & 50–950 ramp

primary

#3C66CE

secondary

#D3C093

accent

#B545E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3C66CE

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

Preview Lab → · Contrast checker → · Palette generator →