#3D66BF#3D66BF

#3D66BF is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.8% C 0.147 H 263.6°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#3D66BF
RGB	rgb(61, 102, 191)
HSL	hsl(221, 52%, 49%)
HSV	hsv(221, 68%, 75%)
CMYK	cmyk(68.1%, 46.6%, 0%, 25.1%)
CIE-LAB	lab(44.60, 15.33, -51.03)
CIE-LCH	lch(44.60, 53.28, 286.72°)
OKLab	oklab(52.76% -0.0165 -0.1461)
OKLCH	oklch(52.76% 0.147 263.6)
XYZ	xyz(16.0765, 14.2548, 51.1843)
Luminance	0.1426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66BF #BF963D

analogous

#3DA7BF #3D66BF #553DBF

triadic

#3D66BF #BF3D66 #66BF3D

tetradic

#3D66BF #BF3DA7 #BF963D #3DBF55

square

#3D66BF #BF3DA7 #BF963D #3DBF55

split-complementary

#3D66BF #BF553D #A7BF3D

monochromatic

#1F3462 #2E4D91 #3D66BF #6A8ACF #98AEDE

Accessibility & contrast

On white

5.45

#3D66BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3D66BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66BF

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66BF	#FFFFFF	#000000	##FFFFFF
##3D66BF	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3870C2

Deuteranopia (green-blind)

#1E64BD

Tritanopia (blue-blind)

#007B89

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3d66bf;
/* rgb */ color: rgb(61, 102, 191);
/* oklch */ color: oklch(52.8% 0.147 263.6);

Tailwind

colors: {
  custom: {
    50: '#8191d3',
    500: '#3d66bf',
    950: '#000000',
  },
}

SCSS

$custom: #3d66bf;
$custom-light: #8191d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66bf",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 191
  },
  "hsl": {
    "h": 221.077,
    "s": 51.587,
    "l": 49.412
  },
  "oklch": {
    "l": 0.52758,
    "c": 0.14704,
    "h": 263.6
  },
  "luminance": 0.14256
}

Semantic roles & 50–950 ramp

primary

#3D66BF

secondary

#CAB78E

accent

#AE4DDB

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3D66BF

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

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