#3D66C3#3D66C3

#3D66C3 is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.0% C 0.153 H 264.0°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#3D66C3
RGB	rgb(61, 102, 195)
HSL	hsl(222, 53%, 50%)
HSV	hsv(222, 69%, 76%)
CMYK	cmyk(68.7%, 47.7%, 0%, 23.5%)
CIE-LAB	lab(44.85, 16.78, -52.94)
CIE-LCH	lch(44.85, 55.54, 287.58°)
OKLab	oklab(53.03% -0.0159 -0.1517)
OKLCH	oklch(53.03% 0.153 264)
XYZ	xyz(16.5227, 14.4333, 53.5343)
Luminance	0.1444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66C3 #C39A3D

analogous

#3DA9C3 #3D66C3 #573DC3

triadic

#3D66C3 #C33D66 #66C33D

tetradic

#3D66C3 #C33DA9 #C39A3D #3DC357

square

#3D66C3 #C33DA9 #C39A3D #3DC357

split-complementary

#3D66C3 #C3573D #A9C33D

monochromatic

#203566 #2E4D95 #3D66C3 #6C8BD1 #9AB0E0

Accessibility & contrast

On white

5.40

#3D66C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#3D66C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66C3

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66C3	#FFFFFF	#000000	##FFFFFF
##3D66C3	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3571C6

Deuteranopia (green-blind)

#1464C1

Tritanopia (blue-blind)

#007C8B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3d66c3;
/* rgb */ color: rgb(61, 102, 195);
/* oklch */ color: oklch(53.0% 0.153 264.0);

Tailwind

colors: {
  custom: {
    50: '#8291d6',
    500: '#3d66c3',
    950: '#000000',
  },
}

SCSS

$custom: #3d66c3;
$custom-light: #8291d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66c3",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 195
  },
  "hsl": {
    "h": 221.642,
    "s": 52.756,
    "l": 50.196
  },
  "oklch": {
    "l": 0.53032,
    "c": 0.15256,
    "h": 264
  },
  "luminance": 0.14435
}

Semantic roles & 50–950 ramp

primary

#3D66C3

secondary

#CCBA90

accent

#B04CDC

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3D66C3

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

Preview Lab → · Contrast checker → · Palette generator →