#3960B7#3960B7

#3960B7 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 50.7% C 0.145 H 263.8°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3960B7
RGB	rgb(57, 96, 183)
HSL	hsl(221, 53%, 47%)
HSV	hsv(221, 69%, 72%)
CMYK	cmyk(68.9%, 47.5%, 0%, 28.2%)
CIE-LAB	lab(42.24, 15.62, -50.18)
CIE-LCH	lch(42.24, 52.55, 287.29°)
OKLab	oklab(50.74% -0.0155 -0.1438)
OKLCH	oklch(50.74% 0.145 263.8)
XYZ	xyz(14.4144, 12.6531, 46.4732)
Luminance	0.1265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3960B7 #B79039

analogous

#399FB7 #3960B7 #5139B7

triadic

#3960B7 #B73960 #60B739

tetradic

#3960B7 #B7399F #B79039 #39B751

square

#3960B7 #B7399F #B79039 #39B751

split-complementary

#3960B7 #B75139 #9FB739

monochromatic

#1C2F5A #2A4888 #3960B7 #6082CD #8EA6DC

Accessibility & contrast

On white

5.95

#3960B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#3960B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3960B7

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3960B7	#FFFFFF	#000000	##FFFFFF
##3960B7	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#326ABA

Deuteranopia (green-blind)

#155EB5

Tritanopia (blue-blind)

#007482

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3960b7;
/* rgb */ color: rgb(57, 96, 183);
/* oklch */ color: oklch(50.7% 0.145 263.8);

Tailwind

colors: {
  custom: {
    50: '#7e8ccd',
    500: '#3960b7',
    950: '#000000',
  },
}

SCSS

$custom: #3960b7;
$custom-light: #7e8ccd;
$custom-dark: #000000;

JSON

{
  "hex": "#3960b7",
  "rgb": {
    "r": 57,
    "g": 96,
    "b": 183
  },
  "hsl": {
    "h": 221.429,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.50738,
    "c": 0.14459,
    "h": 263.8
  },
  "luminance": 0.12654
}

Semantic roles & 50–950 ramp

primary

#3960B7

secondary

#C7B285

accent

#AF4CDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3960B7

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

Preview Lab → · Contrast checker → · Palette generator →