#3D66D1#3D66D1

#3D66D1 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.0% C 0.172 H 265.3°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#3D66D1
RGB	rgb(61, 102, 209)
HSL	hsl(223, 62%, 53%)
HSV	hsv(223, 71%, 82%)
CMYK	cmyk(70.8%, 51.2%, 0%, 18%)
CIE-LAB	lab(45.77, 21.86, -59.51)
CIE-LCH	lch(45.77, 63.40, 290.17°)
OKLab	oklab(54.03% -0.0142 -0.1711)
OKLCH	oklch(54.03% 0.172 265.3)
XYZ	xyz(18.1804, 15.0964, 62.2650)
Luminance	0.1510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66D1 #D1A83D

analogous

#3DB0D1 #3D66D1 #5E3DD1

triadic

#3D66D1 #D13D66 #66D13D

tetradic

#3D66D1 #D13DB0 #D1A83D #3DD15E

square

#3D66D1 #D13DB0 #D1A83D #3DD15E

split-complementary

#3D66D1 #D15E3D #B0D13D

monochromatic

#1C3677 #284CA9 #3D66D1 #6E8DDD #A0B4E8

Accessibility & contrast

On white

5.22

#3D66D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#3D66D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66D1

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66D1	#FFFFFF	#000000	##FFFFFF
##3D66D1	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2274D5

Deuteranopia (green-blind)

#0066CF

Tritanopia (blue-blind)

#008092

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3d66d1;
/* rgb */ color: rgb(61, 102, 209);
/* oklch */ color: oklch(54.0% 0.172 265.3);

Tailwind

colors: {
  custom: {
    50: '#8491e0',
    500: '#3d66d1',
    950: '#000000',
  },
}

SCSS

$custom: #3d66d1;
$custom-light: #8491e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66d1",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 209
  },
  "hsl": {
    "h": 223.378,
    "s": 61.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.54025,
    "c": 0.17165,
    "h": 265.3
  },
  "luminance": 0.15098
}

Semantic roles & 50–950 ramp

primary

#3D66D1

secondary

#D5C395

accent

#B843E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3D66D1

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

Preview Lab → · Contrast checker → · Palette generator →