#3F4FAD#3F4FAD

#3F4FAD is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.8% C 0.150 H 272.0°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#3F4FAD
RGB	rgb(63, 79, 173)
HSL	hsl(231, 47%, 46%)
HSV	hsv(231, 64%, 68%)
CMYK	cmyk(63.6%, 54.3%, 0%, 32.2%)
CIE-LAB	lab(37.23, 24.04, -52.33)
CIE-LCH	lch(37.23, 57.59, 294.67°)
OKLab	oklab(46.81% 0.0053 -0.1502)
OKLCH	oklch(46.81% 0.15 272)
XYZ	xyz(12.3862, 9.6648, 40.7398)
Luminance	0.0967 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4FAD #AD9D3F

analogous

#3F86AD #3F4FAD #663FAD

triadic

#3F4FAD #AD3F4F #4FAD3F

tetradic

#3F4FAD #AD3F86 #AD9D3F #3FAD66

square

#3F4FAD #AD3F86 #AD9D3F #3FAD66

split-complementary

#3F4FAD #AD663F #86AD3F

monochromatic

#1E2653 #2F3B80 #3F4FAD #6371C6 #909AD7

Accessibility & contrast

On white

7.16

#3F4FAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#3F4FAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4FAD

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4FAD	#FFFFFF	#000000	##FFFFFF
##3F4FAD	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E5DB0

Deuteranopia (green-blind)

#0053AB

Tritanopia (blue-blind)

#006576

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3f4fad;
/* rgb */ color: rgb(63, 79, 173);
/* oklch */ color: oklch(46.8% 0.150 272.0);

Tailwind

colors: {
  custom: {
    50: '#7f80c6',
    500: '#3f4fad',
    950: '#000000',
  },
}

SCSS

$custom: #3f4fad;
$custom-light: #7f80c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4fad",
  "rgb": {
    "r": 63,
    "g": 79,
    "b": 173
  },
  "hsl": {
    "h": 231.273,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46812,
    "c": 0.15032,
    "h": 272
  },
  "luminance": 0.09666
}

Semantic roles & 50–950 ramp

primary

#3F4FAD

secondary

#C2B986

accent

#C352D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3F4FAD

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

Preview Lab → · Contrast checker → · Palette generator →