#3965BC#3965BC

#3965BC is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.2% C 0.145 H 262.4°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#3965BC
RGB	rgb(57, 101, 188)
HSL	hsl(220, 53%, 48%)
HSV	hsv(220, 70%, 74%)
CMYK	cmyk(69.7%, 46.3%, 0%, 26.3%)
CIE-LAB	lab(43.95, 14.25, -50.33)
CIE-LCH	lch(43.95, 52.31, 285.80°)
OKLab	oklab(52.16% -0.0193 -0.1441)
OKLCH	oklch(52.16% 0.145 262.4)
XYZ	xyz(15.4149, 13.8065, 49.4197)
Luminance	0.1381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3965BC #BC9039

analogous

#39A6BC #3965BC #4E39BC

triadic

#3965BC #BC3965 #65BC39

tetradic

#3965BC #BC39A6 #BC9039 #39BC4E

square

#3965BC #BC39A6 #BC9039 #39BC4E

split-complementary

#3965BC #BC4E39 #A6BC39

monochromatic

#1D335E #2B4C8D #3965BC #6387D0 #92ABDE

Accessibility & contrast

On white

5.58

#3965BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#3965BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3965BC

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3965BC	#FFFFFF	#000000	##FFFFFF
##3965BC	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386EBF

Deuteranopia (green-blind)

#1D62BA

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3965bc;
/* rgb */ color: rgb(57, 101, 188);
/* oklch */ color: oklch(52.2% 0.145 262.4);

Tailwind

colors: {
  custom: {
    50: '#7f90d1',
    500: '#3965bc',
    950: '#000000',
  },
}

SCSS

$custom: #3965bc;
$custom-light: #7f90d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3965bc",
  "rgb": {
    "r": 57,
    "g": 101,
    "b": 188
  },
  "hsl": {
    "h": 219.847,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.52157,
    "c": 0.14543,
    "h": 262.4
  },
  "luminance": 0.13808
}

Semantic roles & 50–950 ramp

primary

#3965BC

secondary

#C9B388

accent

#AC4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3965BC

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

Preview Lab → · Contrast checker → · Palette generator →