#3965B5#3965B5

#3965B5 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.7% C 0.136 H 261.3°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#3965B5
RGB	rgb(57, 101, 181)
HSL	hsl(219, 52%, 47%)
HSV	hsv(219, 69%, 71%)
CMYK	cmyk(68.5%, 44.2%, 0%, 29%)
CIE-LAB	lab(43.52, 11.69, -46.94)
CIE-LCH	lch(43.52, 48.37, 283.98°)
OKLab	oklab(51.69% -0.0206 -0.1342)
OKLCH	oklch(51.69% 0.136 261.3)
XYZ	xyz(14.6785, 13.5119, 45.5416)
Luminance	0.1351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3965B5 #B58939

analogous

#39A3B5 #3965B5 #4B39B5

triadic

#3965B5 #B53965 #65B539

tetradic

#3965B5 #B539A3 #B58939 #39B54B

square

#3965B5 #B539A3 #B58939 #39B54B

split-complementary

#3965B5 #B54B39 #A3B539

monochromatic

#1C3158 #2A4B86 #3965B5 #5F86CD #8DA9DB

Accessibility & contrast

On white

5.67

#3965B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#3965B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3965B5

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3965B5	#FFFFFF	#000000	##FFFFFF
##3965B5	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E6DB8

Deuteranopia (green-blind)

#2862B3

Tritanopia (blue-blind)

#007784

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3965b5;
/* rgb */ color: rgb(57, 101, 181);
/* oklch */ color: oklch(51.7% 0.136 261.3);

Tailwind

colors: {
  custom: {
    50: '#7d90cc',
    500: '#3965b5',
    950: '#000000',
  },
}

SCSS

$custom: #3965b5;
$custom-light: #7d90cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3965b5",
  "rgb": {
    "r": 57,
    "g": 101,
    "b": 181
  },
  "hsl": {
    "h": 218.71,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.51688,
    "c": 0.13574,
    "h": 261.3
  },
  "luminance": 0.13513
}

Semantic roles & 50–950 ramp

primary

#3965B5

secondary

#C6AE84

accent

#A94CDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3965B5

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

Preview Lab → · Contrast checker → · Palette generator →