#3C66EF#3C66EF

#3C66EF is a mid, highly saturated blue. Relative luminance 0.167; OKLCH L 56.3% C 0.211 H 266.5°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3C66EF
RGB	rgb(60, 102, 239)
HSL	hsl(226, 85%, 59%)
HSV	hsv(226, 75%, 94%)
CMYK	cmyk(74.9%, 57.3%, 0%, 6.3%)
CIE-LAB	lab(47.87, 32.57, -73.09)
CIE-LCH	lch(47.87, 80.02, 294.02°)
OKLab	oklab(56.28% -0.013 -0.211)
OKLCH	oklch(56.28% 0.211 266.5)
XYZ	xyz(22.1894, 16.6929, 83.6972)
Luminance	0.1669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C66EF #EFC53C

analogous

#3CBFEF #3C66EF #6B3CEF

triadic

#3C66EF #EF3C66 #66EF3C

tetradic

#3C66EF #EF3CBF #EFC53C #3CEF6B

square

#3C66EF #EF3CBF #EFC53C #3CEF6B

split-complementary

#3C66EF #EF6B3C #BFEF3C

monochromatic

#0D31A3 #1241DC #3C66EF #7592F4 #ADBFF8

Accessibility & contrast

On white

4.84

#3C66EF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#3C66EF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3C66EF

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C66EF	#FFFFFF	#000000	##FFFFFF
##3C66EF	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AF4

Deuteranopia (green-blind)

#006AEC

Tritanopia (blue-blind)

#0088A1

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3c66ef;
/* rgb */ color: rgb(60, 102, 239);
/* oklch */ color: oklch(56.3% 0.211 266.5);

Tailwind

colors: {
  custom: {
    50: '#8a91f5',
    500: '#3c66ef',
    950: '#000000',
  },
}

SCSS

$custom: #3c66ef;
$custom-light: #8a91f5;
$custom-dark: #000000;

JSON

{
  "hex": "#3c66ef",
  "rgb": {
    "r": 60,
    "g": 102,
    "b": 239
  },
  "hsl": {
    "h": 225.922,
    "s": 84.834,
    "l": 58.627
  },
  "oklch": {
    "l": 0.56278,
    "c": 0.2114,
    "h": 266.5
  },
  "luminance": 0.16695
}

Semantic roles & 50–950 ramp

primary

#3C66EF

secondary

#E7D6A0

accent

#CB2DFB

background

#F9F8FF

surface

#F2F0FF

border

#CCCBD7

text

#0E0C17

muted

#7E7D85

Preview Lab

Preview with #3C66EF

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

Preview Lab → · Contrast checker → · Palette generator →