#3F48AD#3F48AD

#3F48AD is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.5% C 0.159 H 274.3°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F48AD
RGB	rgb(63, 72, 173)
HSL	hsl(235, 47%, 46%)
HSV	hsv(235, 64%, 68%)
CMYK	cmyk(63.6%, 58.4%, 0%, 32.2%)
CIE-LAB	lab(35.42, 28.57, -55.28)
CIE-LCH	lch(35.42, 62.23, 297.33°)
OKLab	oklab(45.45% 0.012 -0.159)
OKLCH	oklch(45.45% 0.159 274.3)
XYZ	xyz(11.9076, 8.7076, 40.5803)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F48AD #ADA43F

analogous

#3F7FAD #3F48AD #6D3FAD

triadic

#3F48AD #AD3F48 #48AD3F

tetradic

#3F48AD #AD3F7F #ADA43F #3FAD6D

square

#3F48AD #AD3F7F #ADA43F #3FAD6D

split-complementary

#3F48AD #AD6D3F #7FAD3F

monochromatic

#1E2353 #2F3580 #3F48AD #636BC6 #9096D7

Accessibility & contrast

On white

7.66

#3F48AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3F48AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F48AD

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F48AD	#FFFFFF	#000000	##FFFFFF
##3F48AD	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B0

Deuteranopia (green-blind)

#004FAB

Tritanopia (blue-blind)

#006073

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f48ad;
/* rgb */ color: rgb(63, 72, 173);
/* oklch */ color: oklch(45.5% 0.159 274.3);

Tailwind

colors: {
  custom: {
    50: '#807bc6',
    500: '#3f48ad',
    950: '#000000',
  },
}

SCSS

$custom: #3f48ad;
$custom-light: #807bc6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f48ad",
  "rgb": {
    "r": 63,
    "g": 72,
    "b": 173
  },
  "hsl": {
    "h": 235.091,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.45453,
    "c": 0.15943,
    "h": 274.3
  },
  "luminance": 0.08709
}

Semantic roles & 50–950 ramp

primary

#3F48AD

secondary

#C2BD86

accent

#CB52D6

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3F48AD

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

Preview Lab → · Contrast checker → · Palette generator →