#3D66AA#3D66AA

#3D66AA is a mid, moderate blue. Relative luminance 0.134; OKLCH L 51.4% C 0.118 H 260.0°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#3D66AA
RGB	rgb(61, 102, 170)
HSL	hsl(217, 47%, 45%)
HSV	hsv(217, 64%, 67%)
CMYK	cmyk(64.1%, 40%, 0%, 33.3%)
CIE-LAB	lab(43.35, 7.78, -40.76)
CIE-LCH	lch(43.35, 41.49, 280.80°)
OKLab	oklab(51.4% -0.0205 -0.1159)
OKLCH	oklch(51.4% 0.118 260)
XYZ	xyz(13.9290, 13.3958, 39.8740)
Luminance	0.1340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66AA #AA813D

analogous

#3D9CAA #3D66AA #4A3DAA

triadic

#3D66AA #AA3D66 #66AA3D

tetradic

#3D66AA #AA3D9C #AA813D #3DAA4A

square

#3D66AA #AA3D9C #AA813D #3DAA4A

split-complementary

#3D66AA #AA4A3D #9CAA3D

monochromatic

#1D3050 #2D4B7D #3D66AA #5F85C5 #8CA8D6

Accessibility & contrast

On white

5.71

#3D66AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#3D66AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66AA

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66AA	#FFFFFF	#000000	##FFFFFF
##3D66AA	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#486CAD

Deuteranopia (green-blind)

#3862A9

Tritanopia (blue-blind)

#007580

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3d66aa;
/* rgb */ color: rgb(61, 102, 170);
/* oklch */ color: oklch(51.4% 0.118 260.0);

Tailwind

colors: {
  custom: {
    50: '#7d91c3',
    500: '#3d66aa',
    950: '#000000',
  },
}

SCSS

$custom: #3d66aa;
$custom-light: #7d91c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66aa",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 170
  },
  "hsl": {
    "h": 217.431,
    "s": 47.186,
    "l": 45.294
  },
  "oklch": {
    "l": 0.51398,
    "c": 0.11773,
    "h": 260
  },
  "luminance": 0.13397
}

Semantic roles & 50–950 ramp

primary

#3D66AA

secondary

#C0A982

accent

#A451D7

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C12

muted

#7C7D81

Preview Lab

Preview with #3D66AA

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

Preview Lab → · Contrast checker → · Palette generator →