#3D66D2#3D66D2

#3D66D2 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.1% C 0.173 H 265.3°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#3D66D2
RGB	rgb(61, 102, 210)
HSL	hsl(223, 62%, 53%)
HSV	hsv(223, 71%, 82%)
CMYK	cmyk(71%, 51.4%, 0%, 17.6%)
CIE-LAB	lab(45.83, 22.22, -59.98)
CIE-LCH	lch(45.83, 63.96, 290.33°)
OKLab	oklab(54.1% -0.0141 -0.1724)
OKLCH	oklch(54.1% 0.173 265.3)
XYZ	xyz(18.3046, 15.1461, 62.9191)
Luminance	0.1515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66D2 #D2A93D

analogous

#3DB0D2 #3D66D2 #5E3DD2

triadic

#3D66D2 #D23D66 #66D23D

tetradic

#3D66D2 #D23DB0 #D2A93D #3DD25E

square

#3D66D2 #D23DB0 #D2A93D #3DD25E

split-complementary

#3D66D2 #D25E3D #B0D23D

monochromatic

#1C3579 #284BAA #3D66D2 #6F8DDE #A0B4E9

Accessibility & contrast

On white

5.21

#3D66D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#3D66D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66D2

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66D2	#FFFFFF	#000000	##FFFFFF
##3D66D2	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2174D6

Deuteranopia (green-blind)

#0066D0

Tritanopia (blue-blind)

#008092

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3d66d2;
/* rgb */ color: rgb(61, 102, 210);
/* oklch */ color: oklch(54.1% 0.173 265.3);

Tailwind

colors: {
  custom: {
    50: '#8591e0',
    500: '#3d66d2',
    950: '#000000',
  },
}

SCSS

$custom: #3d66d2;
$custom-light: #8591e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66d2",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 210
  },
  "hsl": {
    "h": 223.49,
    "s": 62.343,
    "l": 53.137
  },
  "oklch": {
    "l": 0.54098,
    "c": 0.173,
    "h": 265.3
  },
  "luminance": 0.15148
}

Semantic roles & 50–950 ramp

primary

#3D66D2

secondary

#D6C495

accent

#B942E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3D66D2

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

Preview Lab → · Contrast checker → · Palette generator →