#3963B6#3963B6

#3963B6 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.3% C 0.140 H 262.4°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#3963B6
RGB	rgb(57, 99, 182)
HSL	hsl(220, 52%, 47%)
HSV	hsv(220, 69%, 71%)
CMYK	cmyk(68.7%, 45.6%, 0%, 28.6%)
CIE-LAB	lab(43.02, 13.33, -48.34)
CIE-LCH	lch(43.02, 50.14, 285.42°)
OKLab	oklab(51.32% -0.0185 -0.1383)
OKLCH	oklch(51.32% 0.14 262.4)
XYZ	xyz(14.5897, 13.1695, 46.0200)
Luminance	0.1317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963B6 #B68C39

analogous

#39A2B6 #3963B6 #4E39B6

triadic

#3963B6 #B63963 #63B639

tetradic

#3963B6 #B639A2 #B68C39 #39B64E

square

#3963B6 #B639A2 #B68C39 #39B64E

split-complementary

#3963B6 #B64E39 #A2B639

monochromatic

#1C3059 #2A4A87 #3963B6 #5F84CD #8EA8DC

Accessibility & contrast

On white

5.78

#3963B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#3963B6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963B6

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963B6	#FFFFFF	#000000	##FFFFFF
##3963B6	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A6CB9

Deuteranopia (green-blind)

#2260B4

Tritanopia (blue-blind)

#007683

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3963b6;
/* rgb */ color: rgb(57, 99, 182);
/* oklch */ color: oklch(51.3% 0.140 262.4);

Tailwind

colors: {
  custom: {
    50: '#7e8ecc',
    500: '#3963b6',
    950: '#000000',
  },
}

SCSS

$custom: #3963b6;
$custom-light: #7e8ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#3963b6",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 182
  },
  "hsl": {
    "h": 219.84,
    "s": 52.301,
    "l": 46.863
  },
  "oklch": {
    "l": 0.51317,
    "c": 0.13954,
    "h": 262.4
  },
  "luminance": 0.13171
}

Semantic roles & 50–950 ramp

primary

#3963B6

secondary

#C6B085

accent

#AB4CDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3963B6

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

Preview Lab → · Contrast checker → · Palette generator →