#3960B8#3960B8

#3960B8 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 50.8% C 0.146 H 264.0°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3960B8
RGB	rgb(57, 96, 184)
HSL	hsl(222, 53%, 47%)
HSV	hsv(222, 69%, 72%)
CMYK	cmyk(69%, 47.8%, 0%, 27.8%)
CIE-LAB	lab(42.30, 15.99, -50.66)
CIE-LCH	lch(42.30, 53.12, 287.52°)
OKLab	oklab(50.81% -0.0153 -0.1452)
OKLCH	oklch(50.81% 0.146 264)
XYZ	xyz(14.5189, 12.6948, 47.0233)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3960B8 #B89139

analogous

#399FB8 #3960B8 #5239B8

triadic

#3960B8 #B83960 #60B839

tetradic

#3960B8 #B8399F #B89139 #39B852

square

#3960B8 #B8399F #B89139 #39B852

split-complementary

#3960B8 #B85239 #9FB839

monochromatic

#1C2F5B #2B4889 #3960B8 #6082CE #8FA7DC

Accessibility & contrast

On white

5.93

#3960B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3960B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3960B8

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3960B8	#FFFFFF	#000000	##FFFFFF
##3960B8	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#316ABB

Deuteranopia (green-blind)

#135EB6

Tritanopia (blue-blind)

#007583

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3960b8;
/* rgb */ color: rgb(57, 96, 184);
/* oklch */ color: oklch(50.8% 0.146 264.0);

Tailwind

colors: {
  custom: {
    50: '#7e8cce',
    500: '#3960b8',
    950: '#000000',
  },
}

SCSS

$custom: #3960b8;
$custom-light: #7e8cce;
$custom-dark: #000000;

JSON

{
  "hex": "#3960b8",
  "rgb": {
    "r": 57,
    "g": 96,
    "b": 184
  },
  "hsl": {
    "h": 221.575,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.50807,
    "c": 0.14599,
    "h": 264
  },
  "luminance": 0.12696
}

Semantic roles & 50–950 ramp

primary

#3960B8

secondary

#C7B386

accent

#B04CDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3960B8

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

Preview Lab → · Contrast checker → · Palette generator →