#3A66BF#3A66BF

#3A66BF is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.6% C 0.148 H 262.6°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3A66BF
RGB	rgb(58, 102, 191)
HSL	hsl(220, 53%, 49%)
HSV	hsv(220, 70%, 75%)
CMYK	cmyk(69.6%, 46.6%, 0%, 25.1%)
CIE-LAB	lab(44.46, 14.86, -51.25)
CIE-LCH	lch(44.46, 53.36, 286.17°)
OKLab	oklab(52.62% -0.019 -0.1468)
OKLCH	oklch(52.62% 0.148 262.6)
XYZ	xyz(15.8969, 14.1622, 51.1759)
Luminance	0.1416 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A66BF #BF933A

analogous

#3AA9BF #3A66BF #503ABF

triadic

#3A66BF #BF3A66 #66BF3A

tetradic

#3A66BF #BF3AA9 #BF933A #3ABF50

square

#3A66BF #BF3AA9 #BF933A #3ABF50

split-complementary

#3A66BF #BF503A #A9BF3A

monochromatic

#1D3461 #2C4D90 #3A66BF #6689D0 #95ADDF

Accessibility & contrast

On white

5.48

#3A66BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3A66BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A66BF

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A66BF	#FFFFFF	#000000	##FFFFFF
##3A66BF	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3870C2

Deuteranopia (green-blind)

#1B63BD

Tritanopia (blue-blind)

#007B89

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3a66bf;
/* rgb */ color: rgb(58, 102, 191);
/* oklch */ color: oklch(52.6% 0.148 262.6);

Tailwind

colors: {
  custom: {
    50: '#8091d3',
    500: '#3a66bf',
    950: '#000000',
  },
}

SCSS

$custom: #3a66bf;
$custom-light: #8091d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3a66bf",
  "rgb": {
    "r": 58,
    "g": 102,
    "b": 191
  },
  "hsl": {
    "h": 220.15,
    "s": 53.414,
    "l": 48.824
  },
  "oklch": {
    "l": 0.52621,
    "c": 0.14803,
    "h": 262.6
  },
  "luminance": 0.14164
}

Semantic roles & 50–950 ramp

primary

#3A66BF

secondary

#CAB58B

accent

#AD4BDD

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3A66BF

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

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