#3D66C4#3D66C4

#3D66C4 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.1% C 0.154 H 264.1°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3D66C4
RGB	rgb(61, 102, 196)
HSL	hsl(222, 53%, 50%)
HSV	hsv(222, 69%, 77%)
CMYK	cmyk(68.9%, 48%, 0%, 23.1%)
CIE-LAB	lab(44.91, 17.14, -53.42)
CIE-LCH	lch(44.91, 56.10, 287.79°)
OKLab	oklab(53.1% -0.0157 -0.1531)
OKLCH	oklch(53.1% 0.154 264.1)
XYZ	xyz(16.6361, 14.4787, 54.1318)
Luminance	0.1448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66C4 #C49B3D

analogous

#3DA9C4 #3D66C4 #573DC4

triadic

#3D66C4 #C43D66 #66C43D

tetradic

#3D66C4 #C43DA9 #C49B3D #3DC457

square

#3D66C4 #C43DA9 #C49B3D #3DC457

split-complementary

#3D66C4 #C4573D #A9C43D

monochromatic

#1F3567 #2E4D96 #3D66C4 #6C8BD2 #9BB0E1

Accessibility & contrast

On white

5.39

#3D66C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#3D66C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66C4

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66C4	#FFFFFF	#000000	##FFFFFF
##3D66C4	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3471C7

Deuteranopia (green-blind)

#1164C2

Tritanopia (blue-blind)

#007C8B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3d66c4;
/* rgb */ color: rgb(61, 102, 196);
/* oklch */ color: oklch(53.1% 0.154 264.1);

Tailwind

colors: {
  custom: {
    50: '#8291d6',
    500: '#3d66c4',
    950: '#000000',
  },
}

SCSS

$custom: #3d66c4;
$custom-light: #8291d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66c4",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 196
  },
  "hsl": {
    "h": 221.778,
    "s": 53.36,
    "l": 50.392
  },
  "oklch": {
    "l": 0.53101,
    "c": 0.15394,
    "h": 264.1
  },
  "luminance": 0.1448
}

Semantic roles & 50–950 ramp

primary

#3D66C4

secondary

#CDBA90

accent

#B14BDD

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3D66C4

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

Preview Lab → · Contrast checker → · Palette generator →