#3A66BD#3A66BD

#3A66BD is a mid, vivid blue. Relative luminance 0.141; OKLCH L 52.5% C 0.145 H 262.4°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#3A66BD
RGB	rgb(58, 102, 189)
HSL	hsl(220, 53%, 48%)
HSV	hsv(220, 69%, 74%)
CMYK	cmyk(69.3%, 46%, 0%, 25.9%)
CIE-LAB	lab(44.34, 14.13, -50.29)
CIE-LCH	lch(44.34, 52.24, 285.69°)
OKLab	oklab(52.49% -0.0193 -0.144)
OKLCH	oklch(52.49% 0.145 262.4)
XYZ	xyz(15.6783, 14.0748, 50.0247)
Luminance	0.1408 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A66BD #BD913A

analogous

#3AA7BD #3A66BD #4F3ABD

triadic

#3A66BD #BD3A66 #66BD3A

tetradic

#3A66BD #BD3AA7 #BD913A #3ABD4F

square

#3A66BD #BD3AA7 #BD913A #3ABD4F

split-complementary

#3A66BD #BD4F3A #A7BD3A

monochromatic

#1D335F #2C4D8E #3A66BD #6589D0 #93ACDE

Accessibility & contrast

On white

5.50

#3A66BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#3A66BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A66BD

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A66BD	#FFFFFF	#000000	##FFFFFF
##3A66BD	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A6FC0

Deuteranopia (green-blind)

#1F63BB

Tritanopia (blue-blind)

#007A88

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3a66bd;
/* rgb */ color: rgb(58, 102, 189);
/* oklch */ color: oklch(52.5% 0.145 262.4);

Tailwind

colors: {
  custom: {
    50: '#7f91d1',
    500: '#3a66bd',
    950: '#000000',
  },
}

SCSS

$custom: #3a66bd;
$custom-light: #7f91d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3a66bd",
  "rgb": {
    "r": 58,
    "g": 102,
    "b": 189
  },
  "hsl": {
    "h": 219.847,
    "s": 53.036,
    "l": 48.431
  },
  "oklch": {
    "l": 0.52485,
    "c": 0.14527,
    "h": 262.4
  },
  "luminance": 0.14076
}

Semantic roles & 50–950 ramp

primary

#3A66BD

secondary

#C9B48A

accent

#AC4BDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3A66BD

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

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