#3964BA#3964BA

#3964BA is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.8% C 0.144 H 262.5°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#3964BA
RGB	rgb(57, 100, 186)
HSL	hsl(220, 53%, 48%)
HSV	hsv(220, 69%, 73%)
CMYK	cmyk(69.4%, 46.2%, 0%, 27.1%)
CIE-LAB	lab(43.55, 14.15, -49.82)
CIE-LCH	lch(43.55, 51.79, 285.86°)
OKLab	oklab(51.81% -0.0187 -0.1426)
OKLCH	oklch(51.81% 0.144 262.5)
XYZ	xyz(15.1043, 13.5278, 48.2600)
Luminance	0.1353 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964BA #BA8F39

analogous

#39A4BA #3964BA #4F39BA

triadic

#3964BA #BA3964 #64BA39

tetradic

#3964BA #BA39A4 #BA8F39 #39BA4F

square

#3964BA #BA39A4 #BA8F39 #39BA4F

split-complementary

#3964BA #BA4F39 #A4BA39

monochromatic

#1C325C #2B4B8B #3964BA #6186CF #90AADD

Accessibility & contrast

On white

5.67

#3964BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#3964BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964BA

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964BA	#FFFFFF	#000000	##FFFFFF
##3964BA	1.00	5.67	3.71	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386DBD

Deuteranopia (green-blind)

#1E61B8

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3964ba;
/* rgb */ color: rgb(57, 100, 186);
/* oklch */ color: oklch(51.8% 0.144 262.5);

Tailwind

colors: {
  custom: {
    50: '#7e8fcf',
    500: '#3964ba',
    950: '#000000',
  },
}

SCSS

$custom: #3964ba;
$custom-light: #7e8fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3964ba",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 186
  },
  "hsl": {
    "h": 220,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.51805,
    "c": 0.14388,
    "h": 262.5
  },
  "luminance": 0.13529
}

Semantic roles & 50–950 ramp

primary

#3964BA

secondary

#C8B287

accent

#AC4BDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3964BA

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

Preview Lab → · Contrast checker → · Palette generator →