#3964CA#3964CA

#3964CA is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.9% C 0.166 H 264.3°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#3964CA
RGB	rgb(57, 100, 202)
HSL	hsl(222, 58%, 51%)
HSV	hsv(222, 72%, 79%)
CMYK	cmyk(71.8%, 50.5%, 0%, 20.8%)
CIE-LAB	lab(44.58, 20.03, -57.41)
CIE-LCH	lch(44.58, 60.81, 289.23°)
OKLab	oklab(52.93% -0.0165 -0.165)
OKLCH	oklch(52.93% 0.166 264.3)
XYZ	xyz(16.9014, 14.2467, 57.7248)
Luminance	0.1425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964CA #CA9F39

analogous

#39ACCA #3964CA #5639CA

triadic

#3964CA #CA3964 #64CA39

tetradic

#3964CA #CA39AC #CA9F39 #39CA56

square

#3964CA #CA39AC #CA9F39 #39CA56

split-complementary

#3964CA #CA5639 #ACCA39

monochromatic

#1D346C #2A4C9C #3964CA #698AD7 #9AB0E4

Accessibility & contrast

On white

5.46

#3964CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3964CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964CA

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964CA	#FFFFFF	#000000	##FFFFFF
##3964CA	1.00	5.46	3.85	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2670CE

Deuteranopia (green-blind)

#0063C8

Tritanopia (blue-blind)

#007C8D

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3964ca;
/* rgb */ color: rgb(57, 100, 202);
/* oklch */ color: oklch(52.9% 0.166 264.3);

Tailwind

colors: {
  custom: {
    50: '#828fdb',
    500: '#3964ca',
    950: '#000000',
  },
}

SCSS

$custom: #3964ca;
$custom-light: #828fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3964ca",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 202
  },
  "hsl": {
    "h": 222.207,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.5293,
    "c": 0.16582,
    "h": 264.3
  },
  "luminance": 0.14248
}

Semantic roles & 50–950 ramp

primary

#3964CA

secondary

#D0BC8F

accent

#B347E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3964CA

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

Preview Lab → · Contrast checker → · Palette generator →