#3964C2#3964C2

#3964C2 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.4% C 0.155 H 263.5°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3964C2
RGB	rgb(57, 100, 194)
HSL	hsl(221, 55%, 49%)
HSV	hsv(221, 71%, 76%)
CMYK	cmyk(70.6%, 48.5%, 0%, 23.9%)
CIE-LAB	lab(44.06, 17.09, -53.65)
CIE-LCH	lch(44.06, 56.30, 287.67°)
OKLab	oklab(52.36% -0.0175 -0.1539)
OKLCH	oklch(52.36% 0.155 263.5)
XYZ	xyz(15.9787, 13.8776, 52.8650)
Luminance	0.1388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3964C2 #C29739

analogous

#39A9C2 #3964C2 #5339C2

triadic

#3964C2 #C23964 #64C239

tetradic

#3964C2 #C239A9 #C29739 #39C253

square

#3964C2 #C239A9 #C29739 #39C253

split-complementary

#3964C2 #C25339 #A9C239

monochromatic

#1D3363 #2B4C93 #3964C2 #6688D2 #95ADE0

Accessibility & contrast

On white

5.56

#3964C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#3964C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3964C2

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3964C2	#FFFFFF	#000000	##FFFFFF
##3964C2	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#306FC5

Deuteranopia (green-blind)

#0662C0

Tritanopia (blue-blind)

#007A8A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3964c2;
/* rgb */ color: rgb(57, 100, 194);
/* oklch */ color: oklch(52.4% 0.155 263.5);

Tailwind

colors: {
  custom: {
    50: '#808fd5',
    500: '#3964c2',
    950: '#000000',
  },
}

SCSS

$custom: #3964c2;
$custom-light: #808fd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3964c2",
  "rgb": {
    "r": 57,
    "g": 100,
    "b": 194
  },
  "hsl": {
    "h": 221.168,
    "s": 54.582,
    "l": 49.216
  },
  "oklch": {
    "l": 0.52358,
    "c": 0.15491,
    "h": 263.5
  },
  "luminance": 0.13879
}

Semantic roles & 50–950 ramp

primary

#3964C2

secondary

#CBB78B

accent

#AF4ADE

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3964C2

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

Preview Lab → · Contrast checker → · Palette generator →