#3965B7#3965B7

#3965B7 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.8% C 0.139 H 261.6°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#3965B7
RGB	rgb(57, 101, 183)
HSL	hsl(219, 53%, 47%)
HSV	hsv(219, 69%, 72%)
CMYK	cmyk(68.9%, 44.8%, 0%, 28.2%)
CIE-LAB	lab(43.65, 12.42, -47.92)
CIE-LCH	lch(43.65, 49.50, 284.53°)
OKLab	oklab(51.82% -0.0202 -0.137)
OKLCH	oklch(51.82% 0.139 261.6)
XYZ	xyz(14.8852, 13.5946, 46.6301)
Luminance	0.1360 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3965B7 #B78B39

analogous

#39A4B7 #3965B7 #4C39B7

triadic

#3965B7 #B73965 #65B739

tetradic

#3965B7 #B739A4 #B78B39 #39B74C

square

#3965B7 #B739A4 #B78B39 #39B74C

split-complementary

#3965B7 #B74C39 #A4B739

monochromatic

#1C315A #2A4B88 #3965B7 #6086CD #8EAADC

Accessibility & contrast

On white

5.65

#3965B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#3965B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3965B7

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3965B7	#FFFFFF	#000000	##FFFFFF
##3965B7	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6DBA

Deuteranopia (green-blind)

#2662B5

Tritanopia (blue-blind)

#007885

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3965b7;
/* rgb */ color: rgb(57, 101, 183);
/* oklch */ color: oklch(51.8% 0.139 261.6);

Tailwind

colors: {
  custom: {
    50: '#7e90cd',
    500: '#3965b7',
    950: '#000000',
  },
}

SCSS

$custom: #3965b7;
$custom-light: #7e90cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3965b7",
  "rgb": {
    "r": 57,
    "g": 101,
    "b": 183
  },
  "hsl": {
    "h": 219.048,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.5182,
    "c": 0.13851,
    "h": 261.6
  },
  "luminance": 0.13596
}

Semantic roles & 50–950 ramp

primary

#3965B7

secondary

#C7B085

accent

#AA4CDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3965B7

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

Preview Lab → · Contrast checker → · Palette generator →