#3963A4#3963A4

#3963A4 is a mid, moderate blue. Relative luminance 0.125; OKLCH L 50.2% C 0.114 H 258.9°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#3963A4
RGB	rgb(57, 99, 164)
HSL	hsl(216, 48%, 43%)
HSV	hsv(216, 65%, 64%)
CMYK	cmyk(65.2%, 39.6%, 0%, 35.7%)
CIE-LAB	lab(41.96, 6.79, -39.44)
CIE-LCH	lch(41.96, 40.02, 279.76°)
OKLab	oklab(50.16% -0.0221 -0.1122)
OKLCH	oklch(50.16% 0.114 258.9)
XYZ	xyz(12.8476, 12.4726, 36.8452)
Luminance	0.1247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3963A4 #A47A39

analogous

#3998A4 #3963A4 #4539A4

triadic

#3963A4 #A43963 #63A439

tetradic

#3963A4 #A43998 #A47A39 #39A445

square

#3963A4 #A43998 #A47A39 #39A445

split-complementary

#3963A4 #A44539 #98A439

monochromatic

#192C49 #294877 #3963A4 #5681C4 #83A3D4

Accessibility & contrast

On white

6.01

#3963A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#3963A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3963A4

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3963A4	#FFFFFF	#000000	##FFFFFF
##3963A4	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4668A7

Deuteranopia (green-blind)

#375EA3

Tritanopia (blue-blind)

#00727B

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3963a4;
/* rgb */ color: rgb(57, 99, 164);
/* oklch */ color: oklch(50.2% 0.114 258.9);

Tailwind

colors: {
  custom: {
    50: '#7a8fbf',
    500: '#3963a4',
    950: '#000000',
  },
}

SCSS

$custom: #3963a4;
$custom-light: #7a8fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#3963a4",
  "rgb": {
    "r": 57,
    "g": 99,
    "b": 164
  },
  "hsl": {
    "h": 216.449,
    "s": 48.416,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50155,
    "c": 0.11435,
    "h": 258.9
  },
  "luminance": 0.12474
}

Semantic roles & 50–950 ramp

primary

#3963A4

secondary

#BEA47B

accent

#A350D8

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3963A4

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

Preview Lab → · Contrast checker → · Palette generator →