#3F4EAB#3F4EAB

#3F4EAB is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.5% C 0.149 H 272.4°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#3F4EAB
RGB	rgb(63, 78, 171)
HSL	hsl(232, 46%, 46%)
HSV	hsv(232, 63%, 67%)
CMYK	cmyk(63.2%, 54.4%, 0%, 32.9%)
CIE-LAB	lab(36.83, 23.98, -51.80)
CIE-LCH	lch(36.83, 57.09, 294.84°)
OKLab	oklab(46.46% 0.0062 -0.1487)
OKLCH	oklch(46.46% 0.149 272.4)
XYZ	xyz(12.1225, 9.4448, 39.7044)
Luminance	0.0945 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4EAB #AB9C3F

analogous

#3F84AB #3F4EAB #663FAB

triadic

#3F4EAB #AB3F4E #4EAB3F

tetradic

#3F4EAB #AB3F84 #AB9C3F #3FAB66

square

#3F4EAB #AB3F84 #AB9C3F #3FAB66

split-complementary

#3F4EAB #AB663F #84AB3F

monochromatic

#1E2552 #2F3A7E #3F4EAB #6270C5 #8F99D6

Accessibility & contrast

On white

7.27

#3F4EAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#3F4EAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4EAB

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4EAB	#FFFFFF	#000000	##FFFFFF
##3F4EAB	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E5CAE

Deuteranopia (green-blind)

#0052A9

Tritanopia (blue-blind)

#006475

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3f4eab;
/* rgb */ color: rgb(63, 78, 171);
/* oklch */ color: oklch(46.5% 0.149 272.4);

Tailwind

colors: {
  custom: {
    50: '#7f7fc5',
    500: '#3f4eab',
    950: '#000000',
  },
}

SCSS

$custom: #3f4eab;
$custom-light: #7f7fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4eab",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 171
  },
  "hsl": {
    "h": 231.667,
    "s": 46.154,
    "l": 45.882
  },
  "oklch": {
    "l": 0.46461,
    "c": 0.14881,
    "h": 272.4
  },
  "luminance": 0.09446
}

Semantic roles & 50–950 ramp

primary

#3F4EAB

secondary

#C1B885

accent

#C452D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3F4EAB

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

Preview Lab → · Contrast checker → · Palette generator →