#3D66CA#3D66CA

#3D66CA is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.5% C 0.162 H 264.7°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#3D66CA
RGB	rgb(61, 102, 202)
HSL	hsl(223, 57%, 52%)
HSV	hsv(223, 70%, 79%)
CMYK	cmyk(69.8%, 49.5%, 0%, 20.8%)
CIE-LAB	lab(45.30, 19.32, -56.25)
CIE-LCH	lch(45.30, 59.47, 288.95°)
OKLab	oklab(53.52% -0.0149 -0.1615)
OKLCH	oklch(53.52% 0.162 264.7)
XYZ	xyz(17.3328, 14.7573, 57.8007)
Luminance	0.1476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66CA #CAA13D

analogous

#3DADCA #3D66CA #5B3DCA

triadic

#3D66CA #CA3D66 #66CA3D

tetradic

#3D66CA #CA3DAD #CAA13D #3DCA5B

square

#3D66CA #CA3DAD #CAA13D #3DCA5B

split-complementary

#3D66CA #CA5B3D #ADCA3D

monochromatic

#1E366E #2B4D9F #3D66CA #6D8CD7 #9DB2E4

Accessibility & contrast

On white

5.31

#3D66CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#3D66CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66CA

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66CA	#FFFFFF	#000000	##FFFFFF
##3D66CA	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D72CE

Deuteranopia (green-blind)

#0065C8

Tritanopia (blue-blind)

#007E8E

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3d66ca;
/* rgb */ color: rgb(61, 102, 202);
/* oklch */ color: oklch(53.5% 0.162 264.7);

Tailwind

colors: {
  custom: {
    50: '#8391db',
    500: '#3d66ca',
    950: '#000000',
  },
}

SCSS

$custom: #3d66ca;
$custom-light: #8391db;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66ca",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 202
  },
  "hsl": {
    "h": 222.553,
    "s": 57.085,
    "l": 51.569
  },
  "oklch": {
    "l": 0.53522,
    "c": 0.16215,
    "h": 264.7
  },
  "luminance": 0.14759
}

Semantic roles & 50–950 ramp

primary

#3D66CA

secondary

#D0BE92

accent

#B447E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3D66CA

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

Preview Lab → · Contrast checker → · Palette generator →