#3963AA#3963AA

#3963AA is a mid, vivid blue. Relative luminance 0.127; OKLCH L 50.5% C 0.123 H 260.3°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3963AA
RGB	rgb(57, 99, 170)
HSL	hsl(218, 50%, 45%)
HSV	hsv(218, 66%, 67%)
CMYK	cmyk(66.5%, 41.8%, 0%, 33.3%)
CIE-LAB	lab(42.30, 8.96, -42.44)
CIE-LCH	lch(42.30, 43.38, 281.91°)
OKLab	oklab(50.53% -0.0208 -0.121)
OKLCH	oklch(50.53% 0.123 260.3)
XYZ	xyz(13.4023, 12.6945, 39.7664)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963AA #AA8039

analogous

#399CAA #3963AA #4739AA

triadic

#3963AA #AA3963 #63AA39

tetradic

#3963AA #AA399C #AA8039 #39AA47

square

#3963AA #AA399C #AA8039 #39AA47

split-complementary

#3963AA #AA4739 #9CAA39

monochromatic

#1A2E4E #2A487C #3963AA #5982C7 #87A4D7

Accessibility & contrast

On white

5.93

#3963AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3963AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963AA

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963AA	#FFFFFF	#000000	##FFFFFF
##3963AA	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4269AD

Deuteranopia (green-blind)

#315FA9

Tritanopia (blue-blind)

#00737E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3963aa;
/* rgb */ color: rgb(57, 99, 170);
/* oklch */ color: oklch(50.5% 0.123 260.3);

Tailwind

colors: {
  custom: {
    50: '#7b8ec4',
    500: '#3963aa',
    950: '#000000',
  },
}

SCSS

$custom: #3963aa;
$custom-light: #7b8ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#3963aa",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 170
  },
  "hsl": {
    "h": 217.699,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.50531,
    "c": 0.12276,
    "h": 260.3
  },
  "luminance": 0.12696
}

Semantic roles & 50–950 ramp

primary

#3963AA

secondary

#C1A87E

accent

#A64ED9

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3963AA

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

Preview Lab → · Contrast checker → · Palette generator →