#3965C7#3965C7

#3965C7 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.9% C 0.161 H 263.7°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#3965C7
RGB	rgb(57, 101, 199)
HSL	hsl(221, 56%, 50%)
HSV	hsv(221, 71%, 78%)
CMYK	cmyk(71.4%, 49.2%, 0%, 22%)
CIE-LAB	lab(44.66, 18.29, -55.57)
CIE-LCH	lch(44.66, 58.50, 288.21°)
OKLab	oklab(52.92% -0.0177 -0.1595)
OKLCH	oklch(52.92% 0.161 263.7)
XYZ	xyz(16.6462, 14.2990, 55.9045)
Luminance	0.1430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3965C7 #C79B39

analogous

#39ACC7 #3965C7 #5439C7

triadic

#3965C7 #C73965 #65C739

tetradic

#3965C7 #C739AC #C79B39 #39C754

square

#3965C7 #C739AC #C79B39 #39C754

split-complementary

#3965C7 #C75439 #ACC739

monochromatic

#1D3568 #2B4D98 #3965C7 #698AD4 #98AFE2

Accessibility & contrast

On white

5.44

#3965C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#3965C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3965C7

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3965C7	#FFFFFF	#000000	##FFFFFF
##3965C7	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D71CB

Deuteranopia (green-blind)

#0063C5

Tritanopia (blue-blind)

#007C8C

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3965c7;
/* rgb */ color: rgb(57, 101, 199);
/* oklch */ color: oklch(52.9% 0.161 263.7);

Tailwind

colors: {
  custom: {
    50: '#8190d9',
    500: '#3965c7',
    950: '#000000',
  },
}

SCSS

$custom: #3965c7;
$custom-light: #8190d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3965c7",
  "rgb": {
    "r": 57,
    "g": 101,
    "b": 199
  },
  "hsl": {
    "h": 221.408,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.52922,
    "c": 0.16051,
    "h": 263.7
  },
  "luminance": 0.14301
}

Semantic roles & 50–950 ramp

primary

#3965C7

secondary

#CEBA8E

accent

#B149DF

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3965C7

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

Preview Lab → · Contrast checker → · Palette generator →