#3960BB#3960BB

#3960BB is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.0% C 0.150 H 264.3°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#3960BB
RGB	rgb(57, 96, 187)
HSL	hsl(222, 53%, 48%)
HSV	hsv(222, 70%, 73%)
CMYK	cmyk(69.5%, 48.7%, 0%, 26.7%)
CIE-LAB	lab(42.49, 17.09, -52.10)
CIE-LCH	lch(42.49, 54.83, 288.16°)
OKLab	oklab(51.02% -0.0149 -0.1494)
OKLCH	oklch(51.02% 0.15 264.3)
XYZ	xyz(14.8367, 12.8220, 48.6970)
Luminance	0.1282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3960BB #BB9439

analogous

#39A1BB #3960BB #5339BB

triadic

#3960BB #BB3960 #60BB39

tetradic

#3960BB #BB39A1 #BB9439 #39BB53

square

#3960BB #BB39A1 #BB9439 #39BB53

split-complementary

#3960BB #BB5339 #A1BB39

monochromatic

#1C305D #2B488C #3960BB #6283CF #91A8DD

Accessibility & contrast

On white

5.89

#3960BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3960BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3960BB

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3960BB	#FFFFFF	#000000	##FFFFFF
##3960BB	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E6BBE

Deuteranopia (green-blind)

#085FB9

Tritanopia (blue-blind)

#007584

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3960bb;
/* rgb */ color: rgb(57, 96, 187);
/* oklch */ color: oklch(51.0% 0.150 264.3);

Tailwind

colors: {
  custom: {
    50: '#7f8cd0',
    500: '#3960bb',
    950: '#000000',
  },
}

SCSS

$custom: #3960bb;
$custom-light: #7f8cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3960bb",
  "rgb": {
    "r": 57,
    "g": 96,
    "b": 187
  },
  "hsl": {
    "h": 222,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.51018,
    "c": 0.15015,
    "h": 264.3
  },
  "luminance": 0.12823
}

Semantic roles & 50–950 ramp

primary

#3960BB

secondary

#C8B587

accent

#B14BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3960BB

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

Preview Lab → · Contrast checker → · Palette generator →