#3E66C9#3E66C9

#3E66C9 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.5% C 0.160 H 264.9°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#3E66C9
RGB	rgb(62, 102, 201)
HSL	hsl(223, 56%, 52%)
HSV	hsv(223, 69%, 79%)
CMYK	cmyk(69.2%, 49.3%, 0%, 21.2%)
CIE-LAB	lab(45.28, 19.10, -55.71)
CIE-LCH	lch(45.28, 58.89, 288.93°)
OKLab	oklab(53.5% -0.0142 -0.1598)
OKLCH	oklch(53.5% 0.16 264.9)
XYZ	xyz(17.2769, 14.7422, 57.1820)
Luminance	0.1474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E66C9 #C9A13E

analogous

#3EABC9 #3E66C9 #5C3EC9

triadic

#3E66C9 #C93E66 #66C93E

tetradic

#3E66C9 #C93EAB #C9A13E #3EC95C

square

#3E66C9 #C93EAB #C9A13E #3EC95C

split-complementary

#3E66C9 #C95C3E #ABC93E

monochromatic

#1F366E #2C4D9E #3E66C9 #6E8CD6 #9EB2E4

Accessibility & contrast

On white

5.32

#3E66C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#3E66C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E66C9

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E66C9	#FFFFFF	#000000	##FFFFFF
##3E66C9	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E72CD

Deuteranopia (green-blind)

#0065C7

Tritanopia (blue-blind)

#007D8E

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3e66c9;
/* rgb */ color: rgb(62, 102, 201);
/* oklch */ color: oklch(53.5% 0.160 264.9);

Tailwind

colors: {
  custom: {
    50: '#8391da',
    500: '#3e66c9',
    950: '#000000',
  },
}

SCSS

$custom: #3e66c9;
$custom-light: #8391da;
$custom-dark: #000000;

JSON

{
  "hex": "#3e66c9",
  "rgb": {
    "r": 62,
    "g": 102,
    "b": 201
  },
  "hsl": {
    "h": 222.734,
    "s": 56.275,
    "l": 51.569
  },
  "oklch": {
    "l": 0.53497,
    "c": 0.16047,
    "h": 264.9
  },
  "luminance": 0.14744
}

Semantic roles & 50–950 ramp

primary

#3E66C9

secondary

#D0BE93

accent

#B448E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3E66C9

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

Preview Lab → · Contrast checker → · Palette generator →