#3F52D3#3F52D3

#3F52D3 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.4% C 0.198 H 271.0°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#3F52D3
RGB	rgb(63, 82, 211)
HSL	hsl(232, 63%, 54%)
HSV	hsv(232, 70%, 83%)
CMYK	cmyk(70.1%, 61.1%, 0%, 17.3%)
CIE-LAB	lab(40.88, 35.53, -68.58)
CIE-LCH	lch(40.88, 77.24, 297.38°)
OKLab	oklab(50.44% 0.0034 -0.1979)
OKLCH	oklch(50.44% 0.198 271)
XYZ	xyz(16.8211, 11.7928, 63.0051)
Luminance	0.1179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F52D3 #D3C03F

analogous

#3F9CD3 #3F52D3 #763FD3

triadic

#3F52D3 #D33F52 #52D33F

tetradic

#3F52D3 #D33F9C #D3C03F #3FD376

square

#3F52D3 #D33F9C #D3C03F #3FD376

split-complementary

#3F52D3 #D3763F #9CD33F

monochromatic

#1C287B #2839AD #3F52D3 #717FDE #A3ACEA

Accessibility & contrast

On white

6.25

#3F52D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#3F52D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F52D3

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F52D3	#FFFFFF	#000000	##FFFFFF
##3F52D3	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D7

Deuteranopia (green-blind)

#005AD0

Tritanopia (blue-blind)

#00738B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3f52d3;
/* rgb */ color: rgb(63, 82, 211);
/* oklch */ color: oklch(50.4% 0.198 271.0);

Tailwind

colors: {
  custom: {
    50: '#8782e1',
    500: '#3f52d3',
    950: '#000000',
  },
}

SCSS

$custom: #3f52d3;
$custom-light: #8782e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f52d3",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 211
  },
  "hsl": {
    "h": 232.297,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.50439,
    "c": 0.19798,
    "h": 271
  },
  "luminance": 0.11794
}

Semantic roles & 50–950 ramp

primary

#3F52D3

secondary

#D7CE97

accent

#D142E6

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #3F52D3

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

Preview Lab → · Contrast checker → · Palette generator →