#3F38D1#3F38D1

#3F38D1 is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.1% C 0.224 H 275.1°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3F38D1
RGB	rgb(63, 56, 209)
HSL	hsl(243, 62%, 52%)
HSV	hsv(243, 73%, 82%)
CMYK	cmyk(69.9%, 73.2%, 0%, 18%)
CIE-LAB	lab(34.98, 50.28, -77.13)
CIE-LCH	lch(34.98, 92.07, 303.10°)
OKLab	oklab(46.1% 0.0199 -0.223)
OKLCH	oklch(46.1% 0.224 275.1)
XYZ	xyz(14.9689, 8.4871, 61.1586)
Luminance	0.0849 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.61

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F38D1 #CAD138

analogous

#387ED1 #3F38D1 #8C38D1

triadic

#3F38D1 #D13F38 #38D13F

tetradic

#3F38D1 #D1387E #CAD138 #38D18C

square

#3F38D1 #D1387E #CAD138 #38D18C

split-complementary

#3F38D1 #D18C38 #7ED138

monochromatic

#1F1B74 #2C26A6 #3F38D1 #6F6ADC #9F9BE8

Accessibility & contrast

On white

7.78

#3F38D1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3F38D1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F38D1

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F38D1	#FFFFFF	#000000	##FFFFFF
##3F38D1	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059D5

Deuteranopia (green-blind)

#004BCE

Tritanopia (blue-blind)

#006481

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3f38d1;
/* rgb */ color: rgb(63, 56, 209);
/* oklch */ color: oklch(46.1% 0.224 275.1);

Tailwind

colors: {
  custom: {
    50: '#8971e0',
    500: '#3f38d1',
    950: '#000000',
  },
}

SCSS

$custom: #3f38d1;
$custom-light: #8971e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f38d1",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 209
  },
  "hsl": {
    "h": 242.745,
    "s": 62.449,
    "l": 51.961
  },
  "oklch": {
    "l": 0.46102,
    "c": 0.22388,
    "h": 275.1
  },
  "luminance": 0.08489
}

Semantic roles & 50–950 ramp

primary

#3F38D1

secondary

#D1D491

accent

#E642DE

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F38D1

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

Preview Lab → · Contrast checker → · Palette generator →