#3E66BC#3E66BC

#3E66BC is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.6% C 0.143 H 263.5°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3E66BC
RGB	rgb(62, 102, 188)
HSL	hsl(221, 50%, 49%)
HSV	hsv(221, 67%, 74%)
CMYK	cmyk(67%, 45.7%, 0%, 26.3%)
CIE-LAB	lab(44.46, 14.40, -49.51)
CIE-LCH	lch(44.46, 51.57, 286.22°)
OKLab	oklab(52.6% -0.0161 -0.1416)
OKLCH	oklch(52.6% 0.143 263.5)
XYZ	xyz(15.8119, 14.1562, 49.4663)
Luminance	0.1416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E66BC #BC943E

analogous

#3EA5BC #3E66BC #553EBC

triadic

#3E66BC #BC3E66 #66BC3E

tetradic

#3E66BC #BC3EA5 #BC943E #3EBC55

square

#3E66BC #BC3EA5 #BC943E #3EBC55

split-complementary

#3E66BC #BC553E #A5BC3E

monochromatic

#203460 #2F4D8E #3E66BC #6A89CE #98AEDD

Accessibility & contrast

On white

5.48

#3E66BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3E66BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E66BC

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E66BC	#FFFFFF	#000000	##FFFFFF
##3E66BC	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B6FBF

Deuteranopia (green-blind)

#2464BA

Tritanopia (blue-blind)

#007A88

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3e66bc;
/* rgb */ color: rgb(62, 102, 188);
/* oklch */ color: oklch(52.6% 0.143 263.5);

Tailwind

colors: {
  custom: {
    50: '#8191d1',
    500: '#3e66bc',
    950: '#000000',
  },
}

SCSS

$custom: #3e66bc;
$custom-light: #8191d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3e66bc",
  "rgb": {
    "r": 62,
    "g": 102,
    "b": 188
  },
  "hsl": {
    "h": 220.952,
    "s": 50.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.52603,
    "c": 0.14254,
    "h": 263.5
  },
  "luminance": 0.14158
}

Semantic roles & 50–950 ramp

primary

#3E66BC

secondary

#C9B68D

accent

#AD4EDA

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3E66BC

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

Preview Lab → · Contrast checker → · Palette generator →