#3965BB#3965BB

#3965BB is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.1% C 0.144 H 262.2°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#3965BB
RGB	rgb(57, 101, 187)
HSL	hsl(220, 53%, 48%)
HSV	hsv(220, 70%, 73%)
CMYK	cmyk(69.5%, 46%, 0%, 26.7%)
CIE-LAB	lab(43.89, 13.88, -49.85)
CIE-LCH	lch(43.89, 51.75, 285.56°)
OKLab	oklab(52.09% -0.0195 -0.1427)
OKLCH	oklch(52.09% 0.144 262.2)
XYZ	xyz(15.3075, 13.7635, 48.8540)
Luminance	0.1376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3965BB #BB8F39

analogous

#39A6BB #3965BB #4E39BB

triadic

#3965BB #BB3965 #65BB39

tetradic

#3965BB #BB39A6 #BB8F39 #39BB4E

square

#3965BB #BB39A6 #BB8F39 #39BB4E

split-complementary

#3965BB #BB4E39 #A6BB39

monochromatic

#1C325D #2B4C8C #3965BB #6287CF #91ABDD

Accessibility & contrast

On white

5.60

#3965BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#3965BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3965BB

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3965BB	#FFFFFF	#000000	##FFFFFF
##3965BB	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396EBE

Deuteranopia (green-blind)

#1F62B9

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3965bb;
/* rgb */ color: rgb(57, 101, 187);
/* oklch */ color: oklch(52.1% 0.144 262.2);

Tailwind

colors: {
  custom: {
    50: '#7e90d0',
    500: '#3965bb',
    950: '#000000',
  },
}

SCSS

$custom: #3965bb;
$custom-light: #7e90d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3965bb",
  "rgb": {
    "r": 57,
    "g": 101,
    "b": 187
  },
  "hsl": {
    "h": 219.692,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.52089,
    "c": 0.14405,
    "h": 262.2
  },
  "luminance": 0.13765
}

Semantic roles & 50–950 ramp

primary

#3965BB

secondary

#C8B287

accent

#AB4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3965BB

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

Preview Lab → · Contrast checker → · Palette generator →