#3F47AF#3F47AF

#3F47AF is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.4% C 0.163 H 274.5°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#3F47AF
RGB	rgb(63, 71, 175)
HSL	hsl(236, 47%, 47%)
HSV	hsv(236, 64%, 69%)
CMYK	cmyk(64%, 59.4%, 0%, 31.4%)
CIE-LAB	lab(35.32, 29.91, -56.63)
CIE-LCH	lch(35.32, 64.05, 297.84°)
OKLab	oklab(45.43% 0.0129 -0.163)
OKLCH	oklch(45.43% 0.163 274.5)
XYZ	xyz(12.0385, 8.6574, 41.5858)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.87

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F47AF #AFA73F

analogous

#3F7FAF #3F47AF #6F3FAF

triadic

#3F47AF #AF3F47 #47AF3F

tetradic

#3F47AF #AF3F7F #AFA73F #3FAF6F

square

#3F47AF #AF3F7F #AFA73F #3FAF6F

split-complementary

#3F47AF #AF6F3F #7FAF3F

monochromatic

#1F2255 #2F3582 #3F47AF #646BC7 #9196D7

Accessibility & contrast

On white

7.69

#3F47AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3F47AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F47AF

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F47AF	#FFFFFF	#000000	##FFFFFF
##3F47AF	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B2

Deuteranopia (green-blind)

#004EAD

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f47af;
/* rgb */ color: rgb(63, 71, 175);
/* oklch */ color: oklch(45.4% 0.163 274.5);

Tailwind

colors: {
  custom: {
    50: '#807ac8',
    500: '#3f47af',
    950: '#000000',
  },
}

SCSS

$custom: #3f47af;
$custom-light: #807ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f47af",
  "rgb": {
    "r": 63,
    "g": 71,
    "b": 175
  },
  "hsl": {
    "h": 235.714,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.45428,
    "c": 0.16347,
    "h": 274.5
  },
  "luminance": 0.08658
}

Semantic roles & 50–950 ramp

primary

#3F47AF

secondary

#C3BE87

accent

#CD51D7

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3F47AF

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

Preview Lab → · Contrast checker → · Palette generator →