#3F52CA#3F52CA

#3F52CA is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.7% C 0.186 H 271.1°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#3F52CA
RGB	rgb(63, 82, 202)
HSL	hsl(232, 57%, 52%)
HSV	hsv(232, 69%, 79%)
CMYK	cmyk(68.8%, 59.4%, 0%, 20.8%)
CIE-LAB	lab(40.17, 32.37, -64.56)
CIE-LCH	lch(40.17, 72.22, 296.63°)
OKLab	oklab(49.69% 0.0035 -0.1861)
OKLCH	oklch(49.69% 0.186 271.1)
XYZ	xyz(15.7242, 11.3541, 57.2285)
Luminance	0.1136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F52CA #CAB73F

analogous

#3F97CA #3F52CA #723FCA

triadic

#3F52CA #CA3F52 #52CA3F

tetradic

#3F52CA #CA3F97 #CAB73F #3FCA72

square

#3F52CA #CA3F97 #CAB73F #3FCA72

split-complementary

#3F52CA #CA723F #97CA3F

monochromatic

#1F2A70 #2C3CA0 #3F52CA #6F7DD7 #9FA8E4

Accessibility & contrast

On white

6.42

#3F52CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3F52CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F52CA

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F52CA	#FFFFFF	#000000	##FFFFFF
##3F52CA	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CE

Deuteranopia (green-blind)

#0058C8

Tritanopia (blue-blind)

#007086

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3f52ca;
/* rgb */ color: rgb(63, 82, 202);
/* oklch */ color: oklch(49.7% 0.186 271.1);

Tailwind

colors: {
  custom: {
    50: '#8582db',
    500: '#3f52ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f52ca;
$custom-light: #8582db;
$custom-dark: #000000;

JSON

{
  "hex": "#3f52ca",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 202
  },
  "hsl": {
    "h": 231.799,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.49687,
    "c": 0.18617,
    "h": 271.1
  },
  "luminance": 0.11356
}

Semantic roles & 50–950 ramp

primary

#3F52CA

secondary

#D1C994

accent

#CB48E0

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3F52CA

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

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