#3964C3#3964C3

#3964C3 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.4% C 0.156 H 263.6°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#3964C3
RGB	rgb(57, 100, 195)
HSL	hsl(221, 55%, 49%)
HSV	hsv(221, 71%, 76%)
CMYK	cmyk(70.8%, 48.7%, 0%, 23.5%)
CIE-LAB	lab(44.12, 17.46, -54.12)
CIE-LCH	lch(44.12, 56.87, 287.88°)
OKLab	oklab(52.43% -0.0174 -0.1553)
OKLCH	oklch(52.43% 0.156 263.6)
XYZ	xyz(16.0914, 13.9227, 53.4585)
Luminance	0.1392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964C3 #C39839

analogous

#39A9C3 #3964C3 #5339C3

triadic

#3964C3 #C33964 #64C339

tetradic

#3964C3 #C339A9 #C39839 #39C353

square

#3964C3 #C339A9 #C39839 #39C353

split-complementary

#3964C3 #C35339 #A9C339

monochromatic

#1D3364 #2B4C94 #3964C3 #6788D2 #96ADE0

Accessibility & contrast

On white

5.55

#3964C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#3964C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964C3

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964C3	#FFFFFF	#000000	##FFFFFF
##3964C3	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6FC6

Deuteranopia (green-blind)

#0162C1

Tritanopia (blue-blind)

#007A8A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3964c3;
/* rgb */ color: rgb(57, 100, 195);
/* oklch */ color: oklch(52.4% 0.156 263.6);

Tailwind

colors: {
  custom: {
    50: '#808fd6',
    500: '#3964c3',
    950: '#000000',
  },
}

SCSS

$custom: #3964c3;
$custom-light: #808fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3964c3",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 195
  },
  "hsl": {
    "h": 221.304,
    "s": 54.762,
    "l": 49.412
  },
  "oklch": {
    "l": 0.52429,
    "c": 0.15627,
    "h": 263.6
  },
  "luminance": 0.13924
}

Semantic roles & 50–950 ramp

primary

#3964C3

secondary

#CCB88C

accent

#B04ADE

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3964C3

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

Preview Lab → · Contrast checker → · Palette generator →