#3F4EC2#3F4EC2

#3F4EC2 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.3% C 0.180 H 272.1°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F4EC2
RGB	rgb(63, 78, 194)
HSL	hsl(233, 52%, 50%)
HSV	hsv(233, 68%, 76%)
CMYK	cmyk(67.5%, 59.8%, 0%, 23.9%)
CIE-LAB	lab(38.55, 32.09, -62.55)
CIE-LCH	lch(38.55, 70.30, 297.16°)
OKLab	oklab(48.29% 0.0067 -0.1803)
OKLCH	oklch(48.29% 0.18 272.1)
XYZ	xyz(14.5086, 10.3992, 52.2711)
Luminance	0.1040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4EC2 #C2B33F

analogous

#3F8FC2 #3F4EC2 #713FC2

triadic

#3F4EC2 #C23F4E #4EC23F

tetradic

#3F4EC2 #C23F8F #C2B33F #3FC271

square

#3F4EC2 #C23F8F #C2B33F #3FC271

split-complementary

#3F4EC2 #C2713F #8FC23F

monochromatic

#202866 #2F3B95 #3F4EC2 #6D79D1 #9CA4E0

Accessibility & contrast

On white

6.82

#3F4EC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3F4EC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4EC2

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4EC2	#FFFFFF	#000000	##FFFFFF
##3F4EC2	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C6

Deuteranopia (green-blind)

#0055C0

Tritanopia (blue-blind)

#006B80

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3f4ec2;
/* rgb */ color: rgb(63, 78, 194);
/* oklch */ color: oklch(48.3% 0.180 272.1);

Tailwind

colors: {
  custom: {
    50: '#847fd5',
    500: '#3f4ec2',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ec2;
$custom-light: #847fd5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ec2",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 194
  },
  "hsl": {
    "h": 233.13,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48289,
    "c": 0.18041,
    "h": 272.1
  },
  "luminance": 0.10401
}

Semantic roles & 50–950 ramp

primary

#3F4EC2

secondary

#CCC591

accent

#CB4DDB

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3F4EC2

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

Preview Lab → · Contrast checker → · Palette generator →