#3F44AF#3F44AF

#3F44AF is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.9% C 0.167 H 275.3°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F44AF
RGB	rgb(63, 68, 175)
HSL	hsl(237, 47%, 47%)
HSV	hsv(237, 64%, 69%)
CMYK	cmyk(64%, 61.1%, 0%, 31.4%)
CIE-LAB	lab(34.57, 31.83, -57.85)
CIE-LCH	lch(34.57, 66.02, 298.82°)
OKLab	oklab(44.88% 0.0155 -0.1665)
OKLCH	oklch(44.88% 0.167 275.3)
XYZ	xyz(11.8523, 8.2852, 41.5237)
Luminance	0.0829 (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

#3F44AF #AFAA3F

analogous

#3F7CAF #3F44AF #723FAF

triadic

#3F44AF #AF3F44 #44AF3F

tetradic

#3F44AF #AF3F7C #AFAA3F #3FAF72

square

#3F44AF #AF3F7C #AFAA3F #3FAF72

split-complementary

#3F44AF #AF723F #7CAF3F

monochromatic

#1F2155 #2F3382 #3F44AF #6468C7 #9194D7

Accessibility & contrast

On white

7.90

#3F44AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3F44AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44AF

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44AF	#FFFFFF	#000000	##FFFFFF
##3F44AF	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B3

Deuteranopia (green-blind)

#004CAD

Tritanopia (blue-blind)

#005F73

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f44af;
/* rgb */ color: rgb(63, 68, 175);
/* oklch */ color: oklch(44.9% 0.167 275.3);

Tailwind

colors: {
  custom: {
    50: '#8178c8',
    500: '#3f44af',
    950: '#000000',
  },
}

SCSS

$custom: #3f44af;
$custom-light: #8178c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44af",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 175
  },
  "hsl": {
    "h": 237.321,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44876,
    "c": 0.16727,
    "h": 275.3
  },
  "luminance": 0.08286
}

Semantic roles & 50–950 ramp

primary

#3F44AF

secondary

#C3C087

accent

#D151D7

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3F44AF

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

Preview Lab → · Contrast checker → · Palette generator →