#3D66D3#3D66D3

#3D66D3 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.2% C 0.174 H 265.4°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#3D66D3
RGB	rgb(61, 102, 211)
HSL	hsl(224, 63%, 53%)
HSV	hsv(224, 71%, 83%)
CMYK	cmyk(71.1%, 51.7%, 0%, 17.3%)
CIE-LAB	lab(45.90, 22.58, -60.44)
CIE-LCH	lch(45.90, 64.52, 290.49°)
OKLab	oklab(54.17% -0.014 -0.1738)
OKLCH	oklch(54.17% 0.174 265.4)
XYZ	xyz(18.4296, 15.1961, 63.5773)
Luminance	0.1520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66D3 #D3AA3D

analogous

#3DB1D3 #3D66D3 #5F3DD3

triadic

#3D66D3 #D33D66 #66D33D

tetradic

#3D66D3 #D33DB1 #D3AA3D #3DD35F

square

#3D66D3 #D33DB1 #D3AA3D #3DD35F

split-complementary

#3D66D3 #D35F3D #B1D33D

monochromatic

#1C357A #274BAC #3D66D3 #6F8DDE #A1B5EA

Accessibility & contrast

On white

5.20

#3D66D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#3D66D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66D3

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66D3	#FFFFFF	#000000	##FFFFFF
##3D66D3	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F74D7

Deuteranopia (green-blind)

#0066D1

Tritanopia (blue-blind)

#008093

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3d66d3;
/* rgb */ color: rgb(61, 102, 211);
/* oklch */ color: oklch(54.2% 0.174 265.4);

Tailwind

colors: {
  custom: {
    50: '#8591e1',
    500: '#3d66d3',
    950: '#000000',
  },
}

SCSS

$custom: #3d66d3;
$custom-light: #8591e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66d3",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 211
  },
  "hsl": {
    "h": 223.6,
    "s": 63.025,
    "l": 53.333
  },
  "oklch": {
    "l": 0.54171,
    "c": 0.17434,
    "h": 265.4
  },
  "luminance": 0.15198
}

Semantic roles & 50–950 ramp

primary

#3D66D3

secondary

#D6C596

accent

#B942E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3D66D3

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

Preview Lab → · Contrast checker → · Palette generator →