#3D66BE#3D66BE

#3D66BE is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.7% C 0.146 H 263.4°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#3D66BE
RGB	rgb(61, 102, 190)
HSL	hsl(221, 51%, 49%)
HSV	hsv(221, 68%, 75%)
CMYK	cmyk(67.9%, 46.3%, 0%, 25.5%)
CIE-LAB	lab(44.53, 14.96, -50.55)
CIE-LCH	lch(44.53, 52.72, 286.49°)
OKLab	oklab(52.69% -0.0166 -0.1447)
OKLCH	oklch(52.69% 0.146 263.4)
XYZ	xyz(15.9668, 14.2110, 50.6067)
Luminance	0.1421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66BE #BE953D

analogous

#3DA7BE #3D66BE #553DBE

triadic

#3D66BE #BE3D66 #66BE3D

tetradic

#3D66BE #BE3DA7 #BE953D #3DBE55

square

#3D66BE #BE3DA7 #BE953D #3DBE55

split-complementary

#3D66BE #BE553D #A7BE3D

monochromatic

#1F3461 #2E4D90 #3D66BE #698ACF #98AEDE

Accessibility & contrast

On white

5.47

#3D66BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#3D66BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66BE

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66BE	#FFFFFF	#000000	##FFFFFF
##3D66BE	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3970C1

Deuteranopia (green-blind)

#2064BC

Tritanopia (blue-blind)

#007A89

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3d66be;
/* rgb */ color: rgb(61, 102, 190);
/* oklch */ color: oklch(52.7% 0.146 263.4);

Tailwind

colors: {
  custom: {
    50: '#8191d2',
    500: '#3d66be',
    950: '#000000',
  },
}

SCSS

$custom: #3d66be;
$custom-light: #8191d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66be",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 190
  },
  "hsl": {
    "h": 220.93,
    "s": 51.394,
    "l": 49.216
  },
  "oklch": {
    "l": 0.5269,
    "c": 0.14565,
    "h": 263.4
  },
  "luminance": 0.14213
}

Semantic roles & 50–950 ramp

primary

#3D66BE

secondary

#C9B68D

accent

#AE4DDB

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3D66BE

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

Preview Lab → · Contrast checker → · Palette generator →