#3963DA#3963DA

#3963DA is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.9% C 0.188 H 265.6°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#3963DA
RGB	rgb(57, 99, 218)
HSL	hsl(224, 69%, 54%)
HSV	hsv(224, 74%, 85%)
CMYK	cmyk(73.9%, 54.6%, 0%, 14.5%)
CIE-LAB	lab(45.43, 26.53, -65.20)
CIE-LCH	lch(45.43, 70.39, 292.14°)
OKLab	oklab(53.93% -0.0143 -0.1879)
OKLCH	oklch(53.93% 0.188 265.6)
XYZ	xyz(18.7996, 14.8534, 68.1923)
Luminance	0.1485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963DA #DAB039

analogous

#39B4DA #3963DA #6039DA

triadic

#3963DA #DA3963 #63DA39

tetradic

#3963DA #DA39B4 #DAB039 #39DA60

square

#3963DA #DA39B4 #DAB039 #39DA60

split-complementary

#3963DA #DA6039 #B4DA39

monochromatic

#183381 #2248B4 #3963DA #6D8CE4 #A0B4ED

Accessibility & contrast

On white

5.29

#3963DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#3963DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963DA

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963DA	#FFFFFF	#000000	##FFFFFF
##3963DA	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073DE

Deuteranopia (green-blind)

#0064D8

Tritanopia (blue-blind)

#008095

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3963da;
/* rgb */ color: rgb(57, 99, 218);
/* oklch */ color: oklch(53.9% 0.188 265.6);

Tailwind

colors: {
  custom: {
    50: '#858ee6',
    500: '#3963da',
    950: '#000000',
  },
}

SCSS

$custom: #3963da;
$custom-light: #858ee6;
$custom-dark: #000000;

JSON

{
  "hex": "#3963da",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 218
  },
  "hsl": {
    "h": 224.348,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.53926,
    "c": 0.18844,
    "h": 265.6
  },
  "luminance": 0.14855
}

Semantic roles & 50–950 ramp

primary

#3963DA

secondary

#DAC895

accent

#BE3CEB

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0D0C16

muted

#7D7D84

Preview Lab

Preview with #3963DA

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

Preview Lab → · Contrast checker → · Palette generator →