#3F48AF#3F48AF

#3F48AF is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.6% C 0.162 H 274.2°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F48AF
RGB	rgb(63, 72, 175)
HSL	hsl(235, 47%, 47%)
HSV	hsv(235, 64%, 69%)
CMYK	cmyk(64%, 58.9%, 0%, 31.4%)
CIE-LAB	lab(35.57, 29.27, -56.22)
CIE-LCH	lch(35.57, 63.38, 297.50°)
OKLab	oklab(45.62% 0.012 -0.1617)
OKLCH	oklch(45.62% 0.162 274.2)
XYZ	xyz(12.1026, 8.7856, 41.6071)
Luminance	0.0879 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.09

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F48AF #AFA63F

analogous

#3F80AF #3F48AF #6E3FAF

triadic

#3F48AF #AF3F48 #48AF3F

tetradic

#3F48AF #AF3F80 #AFA63F #3FAF6E

square

#3F48AF #AF3F80 #AFA63F #3FAF6E

split-complementary

#3F48AF #AF6E3F #80AF3F

monochromatic

#1F2355 #2F3582 #3F48AF #646CC7 #9197D7

Accessibility & contrast

On white

7.62

#3F48AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3F48AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F48AF

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F48AF	#FFFFFF	#000000	##FFFFFF
##3F48AF	1.00	7.62	2.76	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B2

Deuteranopia (green-blind)

#004FAD

Tritanopia (blue-blind)

#006174

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3f48af;
/* rgb */ color: rgb(63, 72, 175);
/* oklch */ color: oklch(45.6% 0.162 274.2);

Tailwind

colors: {
  custom: {
    50: '#807bc8',
    500: '#3f48af',
    950: '#000000',
  },
}

SCSS

$custom: #3f48af;
$custom-light: #807bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f48af",
  "rgb": {
    "r": 63,
    "g": 72,
    "b": 175
  },
  "hsl": {
    "h": 235.179,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.45615,
    "c": 0.16218,
    "h": 274.2
  },
  "luminance": 0.08787
}

Semantic roles & 50–950 ramp

primary

#3F48AF

secondary

#C3BE87

accent

#CC51D7

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3F48AF

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

Preview Lab → · Contrast checker → · Palette generator →