#3964C5#3964C5

#3964C5 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.6% C 0.159 H 263.8°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#3964C5
RGB	rgb(57, 100, 197)
HSL	hsl(222, 55%, 50%)
HSV	hsv(222, 71%, 77%)
CMYK	cmyk(71.1%, 49.2%, 0%, 22.7%)
CIE-LAB	lab(44.25, 18.19, -55.07)
CIE-LCH	lch(44.25, 57.99, 288.28°)
OKLab	oklab(52.57% -0.0171 -0.1581)
OKLCH	oklch(52.57% 0.159 263.8)
XYZ	xyz(16.3190, 14.0137, 54.6574)
Luminance	0.1401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964C5 #C59A39

analogous

#39AAC5 #3964C5 #5439C5

triadic

#3964C5 #C53964 #64C539

tetradic

#3964C5 #C539AA #C59A39 #39C554

square

#3964C5 #C539AA #C59A39 #39C554

split-complementary

#3964C5 #C55439 #AAC539

monochromatic

#1E3466 #2B4C96 #3964C5 #6889D3 #97AEE1

Accessibility & contrast

On white

5.52

#3964C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#3964C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964C5

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964C5	#FFFFFF	#000000	##FFFFFF
##3964C5	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D6FC9

Deuteranopia (green-blind)

#0063C3

Tritanopia (blue-blind)

#007B8B

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3964c5;
/* rgb */ color: rgb(57, 100, 197);
/* oklch */ color: oklch(52.6% 0.159 263.8);

Tailwind

colors: {
  custom: {
    50: '#808fd7',
    500: '#3964c5',
    950: '#000000',
  },
}

SCSS

$custom: #3964c5;
$custom-light: #808fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3964c5",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 197
  },
  "hsl": {
    "h": 221.571,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5257,
    "c": 0.15901,
    "h": 263.8
  },
  "luminance": 0.14015
}

Semantic roles & 50–950 ramp

primary

#3964C5

secondary

#CDB98D

accent

#B149DE

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3964C5

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

Preview Lab → · Contrast checker → · Palette generator →