#3F31C8#3F31C8

#3F31C8 is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 44.3% C 0.220 H 276.6°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F31C8
RGB	rgb(63, 49, 200)
HSL	hsl(246, 61%, 49%)
HSV	hsv(246, 76%, 78%)
CMYK	cmyk(68.5%, 75.5%, 0%, 21.6%)
CIE-LAB	lab(32.75, 51.20, -75.57)
CIE-LCH	lch(32.75, 91.28, 304.12°)
OKLab	oklab(44.26% 0.0254 -0.2184)
OKLCH	oklch(44.26% 0.22 276.6)
XYZ	xyz(13.5701, 7.4223, 55.3499)
Luminance	0.0742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.28

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F31C8 #BAC831

analogous

#316FC8 #3F31C8 #8B31C8

triadic

#3F31C8 #C83F31 #31C83F

tetradic

#3F31C8 #C8316F #BAC831 #31C88B

square

#3F31C8 #C8316F #BAC831 #31C88B

split-complementary

#3F31C8 #C88B31 #6FC831

monochromatic

#201966 #302597 #3F31C8 #6A5FD8 #9790E4

Accessibility & contrast

On white

8.45

#3F31C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#3F31C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F31C8

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F31C8	#FFFFFF	#000000	##FFFFFF
##3F31C8	1.00	8.45	2.48	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053CC

Deuteranopia (green-blind)

#0046C5

Tritanopia (blue-blind)

#005D7B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f31c8;
/* rgb */ color: rgb(63, 49, 200);
/* oklch */ color: oklch(44.3% 0.220 276.6);

Tailwind

colors: {
  custom: {
    50: '#876cda',
    500: '#3f31c8',
    950: '#000000',
  },
}

SCSS

$custom: #3f31c8;
$custom-light: #876cda;
$custom-dark: #000000;

JSON

{
  "hex": "#3f31c8",
  "rgb": {
    "r": 63,
    "g": 49,
    "b": 200
  },
  "hsl": {
    "h": 245.563,
    "s": 60.643,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44256,
    "c": 0.21986,
    "h": 276.6
  },
  "luminance": 0.07424
}

Semantic roles & 50–950 ramp

primary

#3F31C8

secondary

#C8CE86

accent

#E444D5

background

#F9F6FD

surface

#F1EBFB

border

#CBC6D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3F31C8

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

Preview Lab → · Contrast checker → · Palette generator →