#3E66BB#3E66BB

#3E66BB is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.5% C 0.141 H 263.4°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#3E66BB
RGB	rgb(62, 102, 187)
HSL	hsl(221, 50%, 49%)
HSV	hsv(221, 67%, 73%)
CMYK	cmyk(66.8%, 45.5%, 0%, 26.7%)
CIE-LAB	lab(44.39, 14.04, -49.03)
CIE-LCH	lch(44.39, 51.00, 285.98°)
OKLab	oklab(52.54% -0.0163 -0.1402)
OKLCH	oklch(52.54% 0.141 263.4)
XYZ	xyz(15.7045, 14.1132, 48.9006)
Luminance	0.1411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E66BB #BB933E

analogous

#3EA5BB #3E66BB #553EBB

triadic

#3E66BB #BB3E66 #66BB3E

tetradic

#3E66BB #BB3EA5 #BB933E #3EBB55

square

#3E66BB #BB3EA5 #BB933E #3EBB55

split-complementary

#3E66BB #BB553E #A5BB3E

monochromatic

#20345F #2F4D8D #3E66BB #6989CD #97ADDC

Accessibility & contrast

On white

5.49

#3E66BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#3E66BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E66BB

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E66BB	#FFFFFF	#000000	##FFFFFF
##3E66BB	1.00	5.49	3.82	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6FBE

Deuteranopia (green-blind)

#2564B9

Tritanopia (blue-blind)

#007A87

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3e66bb;
/* rgb */ color: rgb(62, 102, 187);
/* oklch */ color: oklch(52.5% 0.141 263.4);

Tailwind

colors: {
  custom: {
    50: '#8191d0',
    500: '#3e66bb',
    950: '#000000',
  },
}

SCSS

$custom: #3e66bb;
$custom-light: #8191d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3e66bb",
  "rgb": {
    "r": 62,
    "g": 102,
    "b": 187
  },
  "hsl": {
    "h": 220.8,
    "s": 50.201,
    "l": 48.824
  },
  "oklch": {
    "l": 0.52536,
    "c": 0.14115,
    "h": 263.4
  },
  "luminance": 0.14115
}

Semantic roles & 50–950 ramp

primary

#3E66BB

secondary

#C8B58D

accent

#AD4EDA

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3E66BB

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

Preview Lab → · Contrast checker → · Palette generator →