#3960B3#3960B3

#3960B3 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.5% C 0.139 H 263.3°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#3960B3
RGB	rgb(57, 96, 179)
HSL	hsl(221, 52%, 46%)
HSV	hsv(221, 68%, 70%)
CMYK	cmyk(68.2%, 46.4%, 0%, 29.8%)
CIE-LAB	lab(41.98, 14.16, -48.24)
CIE-LCH	lch(41.98, 50.28, 286.36°)
OKLab	oklab(50.46% -0.0161 -0.1381)
OKLCH	oklch(50.46% 0.139 263.3)
XYZ	xyz(14.0040, 12.4889, 44.3117)
Luminance	0.1249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3960B3 #B38C39

analogous

#399DB3 #3960B3 #4F39B3

triadic

#3960B3 #B33960 #60B339

tetradic

#3960B3 #B3399D #B38C39 #39B34F

square

#3960B3 #B3399D #B38C39 #39B34F

split-complementary

#3960B3 #B34F39 #9DB339

monochromatic

#1B2E56 #2A4785 #3960B3 #5E81CC #8CA5DA

Accessibility & contrast

On white

6.00

#3960B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#3960B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3960B3

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3960B3	#FFFFFF	#000000	##FFFFFF
##3960B3	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3669B6

Deuteranopia (green-blind)

#1E5EB1

Tritanopia (blue-blind)

#007381

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3960b3;
/* rgb */ color: rgb(57, 96, 179);
/* oklch */ color: oklch(50.5% 0.139 263.3);

Tailwind

colors: {
  custom: {
    50: '#7d8cca',
    500: '#3960b3',
    950: '#000000',
  },
}

SCSS

$custom: #3960b3;
$custom-light: #7d8cca;
$custom-dark: #000000;

JSON

{
  "hex": "#3960b3",
  "rgb": {
    "r": 57,
    "g": 96,
    "b": 179
  },
  "hsl": {
    "h": 220.82,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.50463,
    "c": 0.13901,
    "h": 263.3
  },
  "luminance": 0.1249
}

Semantic roles & 50–950 ramp

primary

#3960B3

secondary

#C5B083

accent

#AE4DDB

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3960B3

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

Preview Lab → · Contrast checker → · Palette generator →