#3965B2#3965B2

#3965B2 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.5% C 0.132 H 260.8°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#3965B2
RGB	rgb(57, 101, 178)
HSL	hsl(218, 51%, 46%)
HSV	hsv(218, 68%, 70%)
CMYK	cmyk(68%, 43.3%, 0%, 30.2%)
CIE-LAB	lab(43.35, 10.59, -45.47)
CIE-LCH	lch(43.35, 46.69, 283.11°)
OKLab	oklab(51.49% -0.0211 -0.1299)
OKLCH	oklch(51.49% 0.132 260.8)
XYZ	xyz(14.3740, 13.3901, 43.9379)
Luminance	0.1339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3965B2 #B28639

analogous

#39A1B2 #3965B2 #4939B2

triadic

#3965B2 #B23965 #65B239

tetradic

#3965B2 #B239A1 #B28639 #39B249

square

#3965B2 #B239A1 #B28639 #39B249

split-complementary

#3965B2 #B24939 #A1B239

monochromatic

#1B3055 #2A4B84 #3965B2 #5D85CB #8BA8DA

Accessibility & contrast

On white

5.71

#3965B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#3965B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3965B2

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3965B2	#FFFFFF	#000000	##FFFFFF
##3965B2	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406CB5

Deuteranopia (green-blind)

#2C61B0

Tritanopia (blue-blind)

#007783

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3965b2;
/* rgb */ color: rgb(57, 101, 178);
/* oklch */ color: oklch(51.5% 0.132 260.8);

Tailwind

colors: {
  custom: {
    50: '#7d90c9',
    500: '#3965b2',
    950: '#000000',
  },
}

SCSS

$custom: #3965b2;
$custom-light: #7d90c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3965b2",
  "rgb": {
    "r": 57,
    "g": 101,
    "b": 178
  },
  "hsl": {
    "h": 218.182,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.51492,
    "c": 0.13157,
    "h": 260.8
  },
  "luminance": 0.13392
}

Semantic roles & 50–950 ramp

primary

#3965B2

secondary

#C4AC82

accent

#A74DDB

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3965B2

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

Preview Lab → · Contrast checker → · Palette generator →