#3F44D1#3F44D1

#3F44D1 is a mid, highly saturated blue. Relative luminance 0.098; OKLCH L 47.9% C 0.211 H 273.5°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F44D1
RGB	rgb(63, 68, 209)
HSL	hsl(238, 61%, 53%)
HSV	hsv(238, 70%, 82%)
CMYK	cmyk(69.9%, 67.5%, 0%, 18%)
CIE-LAB	lab(37.47, 43.42, -73.03)
CIE-LCH	lch(37.47, 84.96, 300.73°)
OKLab	oklab(47.89% 0.013 -0.211)
OKLCH	oklch(47.89% 0.211 273.5)
XYZ	xyz(15.6218, 9.7929, 61.3762)
Luminance	0.0979 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F44D1 #D1CC3F

analogous

#3F8DD1 #3F44D1 #833FD1

triadic

#3F44D1 #D13F44 #44D13F

tetradic

#3F44D1 #D13F8D #D1CC3F #3FD183

square

#3F44D1 #D13F8D #D1CC3F #3FD183

split-complementary

#3F44D1 #D1833F #8DD13F

monochromatic

#1D2079 #292DAA #3F44D1 #7074DD #A2A4E9

Accessibility & contrast

On white

7.10

#3F44D1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#3F44D1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44D1

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44D1	#FFFFFF	#000000	##FFFFFF
##3F44D1	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD5

Deuteranopia (green-blind)

#0051CE

Tritanopia (blue-blind)

#006A85

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3f44d1;
/* rgb */ color: rgb(63, 68, 209);
/* oklch */ color: oklch(47.9% 0.211 273.5);

Tailwind

colors: {
  custom: {
    50: '#8878e0',
    500: '#3f44d1',
    950: '#000000',
  },
}

SCSS

$custom: #3f44d1;
$custom-light: #8878e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44d1",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 209
  },
  "hsl": {
    "h": 237.945,
    "s": 61.345,
    "l": 53.333
  },
  "oklch": {
    "l": 0.47887,
    "c": 0.21145,
    "h": 273.5
  },
  "luminance": 0.09794
}

Semantic roles & 50–950 ramp

primary

#3F44D1

secondary

#D5D397

accent

#DF43E4

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F44D1

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

Preview Lab → · Contrast checker → · Palette generator →