#3D66AE#3D66AE

#3D66AE is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.6% C 0.123 H 260.9°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#3D66AE
RGB	rgb(61, 102, 174)
HSL	hsl(218, 48%, 46%)
HSV	hsv(218, 65%, 68%)
CMYK	cmyk(64.9%, 41.4%, 0%, 31.8%)
CIE-LAB	lab(43.58, 9.20, -42.75)
CIE-LCH	lch(43.58, 43.73, 282.15°)
OKLab	oklab(51.65% -0.0196 -0.1218)
OKLCH	oklch(51.65% 0.123 260.9)
XYZ	xyz(14.3131, 13.5495, 41.8972)
Luminance	0.1355 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66AE #AE853D

analogous

#3D9EAE #3D66AE #4C3DAE

triadic

#3D66AE #AE3D66 #66AE3D

tetradic

#3D66AE #AE3D9E #AE853D #3DAE4C

square

#3D66AE #AE3D9E #AE853D #3DAE4C

split-complementary

#3D66AE #AE4C3D #9EAE3D

monochromatic

#1D3153 #2D4B81 #3D66AE #6186C8 #8EA9D7

Accessibility & contrast

On white

5.66

#3D66AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#3D66AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66AE

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66AE	#FFFFFF	#000000	##FFFFFF
##3D66AE	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456DB1

Deuteranopia (green-blind)

#3562AD

Tritanopia (blue-blind)

#007681

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3d66ae;
/* rgb */ color: rgb(61, 102, 174);
/* oklch */ color: oklch(51.6% 0.123 260.9);

Tailwind

colors: {
  custom: {
    50: '#7e91c6',
    500: '#3d66ae',
    950: '#000000',
  },
}

SCSS

$custom: #3d66ae;
$custom-light: #7e91c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66ae",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 174
  },
  "hsl": {
    "h": 218.23,
    "s": 48.085,
    "l": 46.078
  },
  "oklch": {
    "l": 0.51647,
    "c": 0.12334,
    "h": 260.9
  },
  "luminance": 0.13551
}

Semantic roles & 50–950 ramp

primary

#3D66AE

secondary

#C2AC85

accent

#A650D8

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3D66AE

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

Preview Lab → · Contrast checker → · Palette generator →