#3D66CD#3D66CD

#3D66CD is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.7% C 0.166 H 265.0°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3D66CD
RGB	rgb(61, 102, 205)
HSL	hsl(223, 59%, 52%)
HSV	hsv(223, 70%, 80%)
CMYK	cmyk(70.2%, 50.2%, 0%, 19.6%)
CIE-LAB	lab(45.50, 20.40, -57.65)
CIE-LCH	lch(45.50, 61.16, 289.49°)
OKLab	oklab(53.74% -0.0146 -0.1656)
OKLCH	oklch(53.74% 0.166 265)
XYZ	xyz(17.6914, 14.9008, 59.6896)
Luminance	0.1490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66CD #CDA43D

analogous

#3DAECD #3D66CD #5C3DCD

triadic

#3D66CD #CD3D66 #66CD3D

tetradic

#3D66CD #CD3DAE #CDA43D #3DCD5C

square

#3D66CD #CD3DAE #CDA43D #3DCD5C

split-complementary

#3D66CD #CD5C3D #AECD3D

monochromatic

#1D3672 #2A4CA3 #3D66CD #6E8CDA #9EB3E6

Accessibility & contrast

On white

5.28

#3D66CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#3D66CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66CD

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66CD	#FFFFFF	#000000	##FFFFFF
##3D66CD	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2973D1

Deuteranopia (green-blind)

#0065CB

Tritanopia (blue-blind)

#007E90

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3d66cd;
/* rgb */ color: rgb(61, 102, 205);
/* oklch */ color: oklch(53.7% 0.166 265.0);

Tailwind

colors: {
  custom: {
    50: '#8491dd',
    500: '#3d66cd',
    950: '#000000',
  },
}

SCSS

$custom: #3d66cd;
$custom-light: #8491dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66cd",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 205
  },
  "hsl": {
    "h": 222.917,
    "s": 59.016,
    "l": 52.157
  },
  "oklch": {
    "l": 0.53736,
    "c": 0.16623,
    "h": 265
  },
  "luminance": 0.14903
}

Semantic roles & 50–950 ramp

primary

#3D66CD

secondary

#D2C093

accent

#B646E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3D66CD

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

Preview Lab → · Contrast checker → · Palette generator →