#3E66BE#3E66BE

#3E66BE is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.7% C 0.145 H 263.8°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#3E66BE
RGB	rgb(62, 102, 190)
HSL	hsl(221, 51%, 49%)
HSV	hsv(221, 67%, 75%)
CMYK	cmyk(67.4%, 46.3%, 0%, 25.5%)
CIE-LAB	lab(44.58, 15.13, -50.48)
CIE-LCH	lch(44.58, 52.70, 286.68°)
OKLab	oklab(52.74% -0.0158 -0.1445)
OKLCH	oklch(52.74% 0.145 263.8)
XYZ	xyz(16.0290, 14.2430, 50.6097)
Luminance	0.1424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E66BE #BE963E

analogous

#3EA6BE #3E66BE #563EBE

triadic

#3E66BE #BE3E66 #66BE3E

tetradic

#3E66BE #BE3EA6 #BE963E #3EBE56

square

#3E66BE #BE3EA6 #BE963E #3EBE56

split-complementary

#3E66BE #BE563E #A6BE3E

monochromatic

#203462 #2F4D90 #3E66BE #6B8ACF #99AEDE

Accessibility & contrast

On white

5.46

#3E66BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3E66BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E66BE

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E66BE	#FFFFFF	#000000	##FFFFFF
##3E66BE	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A70C1

Deuteranopia (green-blind)

#2064BC

Tritanopia (blue-blind)

#007A89

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3e66be;
/* rgb */ color: rgb(62, 102, 190);
/* oklch */ color: oklch(52.7% 0.145 263.8);

Tailwind

colors: {
  custom: {
    50: '#8191d2',
    500: '#3e66be',
    950: '#000000',
  },
}

SCSS

$custom: #3e66be;
$custom-light: #8191d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3e66be",
  "rgb": {
    "r": 62,
    "g": 102,
    "b": 190
  },
  "hsl": {
    "h": 221.25,
    "s": 50.794,
    "l": 49.412
  },
  "oklch": {
    "l": 0.52738,
    "c": 0.14532,
    "h": 263.8
  },
  "luminance": 0.14245
}

Semantic roles & 50–950 ramp

primary

#3E66BE

secondary

#C9B78E

accent

#AE4EDA

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3E66BE

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

Preview Lab → · Contrast checker → · Palette generator →