#3D66C7#3D66C7

#3D66C7 is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.3% C 0.158 H 264.4°. Best body text is #FFFFFF at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#3D66C7
RGB	rgb(61, 102, 199)
HSL	hsl(222, 55%, 51%)
HSV	hsv(222, 69%, 78%)
CMYK	cmyk(69.3%, 48.7%, 0%, 22%)
CIE-LAB	lab(45.10, 18.23, -54.84)
CIE-LCH	lch(45.10, 57.79, 288.38°)
OKLab	oklab(53.31% -0.0153 -0.1573)
OKLCH	oklch(53.31% 0.158 264.4)
XYZ	xyz(16.9810, 14.6166, 55.9481)
Luminance	0.1462 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66C7 #C79E3D

analogous

#3DABC7 #3D66C7 #593DC7

triadic

#3D66C7 #C73D66 #66C73D

tetradic

#3D66C7 #C73DAB #C79E3D #3DC759

square

#3D66C7 #C73DAB #C79E3D #3DC759

split-complementary

#3D66C7 #C7593D #ABC73D

monochromatic

#1F356B #2D4D9A #3D66C7 #6C8BD5 #9CB1E2

Accessibility & contrast

On white

5.35

#3D66C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#3D66C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66C7

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66C7	#FFFFFF	#000000	##FFFFFF
##3D66C7	1.00	5.35	3.92	5.35
#FFFFFF	5.35	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3071CB

Deuteranopia (green-blind)

#0465C5

Tritanopia (blue-blind)

#007D8D

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3d66c7;
/* rgb */ color: rgb(61, 102, 199);
/* oklch */ color: oklch(53.3% 0.158 264.4);

Tailwind

colors: {
  custom: {
    50: '#8291d9',
    500: '#3d66c7',
    950: '#000000',
  },
}

SCSS

$custom: #3d66c7;
$custom-light: #8291d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66c7",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 199
  },
  "hsl": {
    "h": 222.174,
    "s": 55.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.5331,
    "c": 0.15806,
    "h": 264.4
  },
  "luminance": 0.14618
}

Semantic roles & 50–950 ramp

primary

#3D66C7

secondary

#CEBC91

accent

#B249DF

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3D66C7

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

Preview Lab → · Contrast checker → · Palette generator →