#3964AF#3964AF

#3964AF is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.1% C 0.129 H 260.7°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#3964AF
RGB	rgb(57, 100, 175)
HSL	hsl(218, 51%, 45%)
HSV	hsv(218, 67%, 69%)
CMYK	cmyk(67.4%, 42.9%, 0%, 31.4%)
CIE-LAB	lab(42.88, 10.13, -44.46)
CIE-LCH	lch(42.88, 45.60, 282.84°)
OKLab	oklab(51.08% -0.0207 -0.1269)
OKLCH	oklch(51.08% 0.129 260.7)
XYZ	xyz(13.9796, 13.0780, 42.3367)
Luminance	0.1308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964AF #AF8439

analogous

#399FAF #3964AF #4939AF

triadic

#3964AF #AF3964 #64AF39

tetradic

#3964AF #AF399F #AF8439 #39AF49

square

#3964AF #AF399F #AF8439 #39AF49

split-complementary

#3964AF #AF4939 #9FAF39

monochromatic

#1B2F53 #2A4A81 #3964AF #5B84CA #8AA6D9

Accessibility & contrast

On white

5.81

#3964AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#3964AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964AF

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964AF	#FFFFFF	#000000	##FFFFFF
##3964AF	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#416BB2

Deuteranopia (green-blind)

#2E60AD

Tritanopia (blue-blind)

#007581

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3964af;
/* rgb */ color: rgb(57, 100, 175);
/* oklch */ color: oklch(51.1% 0.129 260.7);

Tailwind

colors: {
  custom: {
    50: '#7c8fc7',
    500: '#3964af',
    950: '#000000',
  },
}

SCSS

$custom: #3964af;
$custom-light: #7c8fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3964af",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 175
  },
  "hsl": {
    "h": 218.136,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51075,
    "c": 0.12858,
    "h": 260.7
  },
  "luminance": 0.13079
}

Semantic roles & 50–950 ramp

primary

#3964AF

secondary

#C3AB81

accent

#A74DDA

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3964AF

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

Preview Lab → · Contrast checker → · Palette generator →