#3D66C8#3D66C8

#3D66C8 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.4% C 0.159 H 264.5°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#3D66C8
RGB	rgb(61, 102, 200)
HSL	hsl(222, 56%, 51%)
HSV	hsv(222, 70%, 78%)
CMYK	cmyk(69.5%, 49%, 0%, 21.6%)
CIE-LAB	lab(45.17, 18.59, -55.31)
CIE-LCH	lch(45.17, 58.35, 288.58°)
OKLab	oklab(53.38% -0.0152 -0.1587)
OKLCH	oklch(53.38% 0.159 264.5)
XYZ	xyz(17.0975, 14.6632, 56.5616)
Luminance	0.1467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66C8 #C89F3D

analogous

#3DABC8 #3D66C8 #593DC8

triadic

#3D66C8 #C83D66 #66C83D

tetradic

#3D66C8 #C83DAB #C89F3D #3DC859

square

#3D66C8 #C83DAB #C89F3D #3DC859

split-complementary

#3D66C8 #C8593D #ABC83D

monochromatic

#1F356C #2C4D9C #3D66C8 #6D8CD6 #9CB1E3

Accessibility & contrast

On white

5.34

#3D66C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#3D66C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66C8

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66C8	#FFFFFF	#000000	##FFFFFF
##3D66C8	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F72CC

Deuteranopia (green-blind)

#0065C6

Tritanopia (blue-blind)

#007D8D

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3d66c8;
/* rgb */ color: rgb(61, 102, 200);
/* oklch */ color: oklch(53.4% 0.159 264.5);

Tailwind

colors: {
  custom: {
    50: '#8391d9',
    500: '#3d66c8',
    950: '#000000',
  },
}

SCSS

$custom: #3d66c8;
$custom-light: #8391d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66c8",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 200
  },
  "hsl": {
    "h": 222.302,
    "s": 55.823,
    "l": 51.176
  },
  "oklch": {
    "l": 0.5338,
    "c": 0.15942,
    "h": 264.5
  },
  "luminance": 0.14665
}

Semantic roles & 50–950 ramp

primary

#3D66C8

secondary

#CFBD92

accent

#B349DF

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3D66C8

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

Preview Lab → · Contrast checker → · Palette generator →