#3964BE#3964BE

#3964BE is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.1% C 0.149 H 263.0°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#3964BE
RGB	rgb(57, 100, 190)
HSL	hsl(221, 54%, 48%)
HSV	hsv(221, 70%, 75%)
CMYK	cmyk(70%, 47.4%, 0%, 25.5%)
CIE-LAB	lab(43.80, 15.62, -51.74)
CIE-LCH	lch(43.80, 54.05, 286.80°)
OKLab	oklab(52.08% -0.0181 -0.1483)
OKLCH	oklch(52.08% 0.149 263)
XYZ	xyz(15.5355, 13.7003, 50.5309)
Luminance	0.1370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964BE #BE9339

analogous

#39A6BE #3964BE #5139BE

triadic

#3964BE #BE3964 #64BE39

tetradic

#3964BE #BE39A6 #BE9339 #39BE51

square

#3964BE #BE39A6 #BE9339 #39BE51

split-complementary

#3964BE #BE5139 #A6BE39

monochromatic

#1D3260 #2B4B8F #3964BE #6487D0 #93ABDF

Accessibility & contrast

On white

5.61

#3964BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#3964BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964BE

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964BE	#FFFFFF	#000000	##FFFFFF
##3964BE	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346EC1

Deuteranopia (green-blind)

#1562BC

Tritanopia (blue-blind)

#007988

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3964be;
/* rgb */ color: rgb(57, 100, 190);
/* oklch */ color: oklch(52.1% 0.149 263.0);

Tailwind

colors: {
  custom: {
    50: '#7f8fd2',
    500: '#3964be',
    950: '#000000',
  },
}

SCSS

$custom: #3964be;
$custom-light: #7f8fd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3964be",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 190
  },
  "hsl": {
    "h": 220.602,
    "s": 53.846,
    "l": 48.431
  },
  "oklch": {
    "l": 0.52079,
    "c": 0.1494,
    "h": 263
  },
  "luminance": 0.13702
}

Semantic roles & 50–950 ramp

primary

#3964BE

secondary

#CAB589

accent

#AE4BDD

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3964BE

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

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