#3F4CAC#3F4CAC

#3F4CAC is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.1% C 0.153 H 273.1°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#3F4CAC
RGB	rgb(63, 76, 172)
HSL	hsl(233, 46%, 46%)
HSV	hsv(233, 63%, 67%)
CMYK	cmyk(63.4%, 55.8%, 0%, 32.5%)
CIE-LAB	lab(36.37, 25.63, -53.13)
CIE-LCH	lch(36.37, 58.99, 295.75°)
OKLab	oklab(46.14% 0.0082 -0.1526)
OKLCH	oklch(46.14% 0.153 273.1)
XYZ	xyz(12.0783, 9.2032, 40.1616)
Luminance	0.0920 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4CAC #AC9F3F

analogous

#3F82AC #3F4CAC #683FAC

triadic

#3F4CAC #AC3F4C #4CAC3F

tetradic

#3F4CAC #AC3F82 #AC9F3F #3FAC68

square

#3F4CAC #AC3F82 #AC9F3F #3FAC68

split-complementary

#3F4CAC #AC683F #82AC3F

monochromatic

#1E2452 #2F387F #3F4CAC #636EC6 #8F98D6

Accessibility & contrast

On white

7.39

#3F4CAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#3F4CAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4CAC

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4CAC	#FFFFFF	#000000	##FFFFFF
##3F4CAC	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BAF

Deuteranopia (green-blind)

#0051AA

Tritanopia (blue-blind)

#006374

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f4cac;
/* rgb */ color: rgb(63, 76, 172);
/* oklch */ color: oklch(46.1% 0.153 273.1);

Tailwind

colors: {
  custom: {
    50: '#7f7dc5',
    500: '#3f4cac',
    950: '#000000',
  },
}

SCSS

$custom: #3f4cac;
$custom-light: #7f7dc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4cac",
  "rgb": {
    "r": 63,
    "g": 76,
    "b": 172
  },
  "hsl": {
    "h": 232.844,
    "s": 46.383,
    "l": 46.078
  },
  "oklch": {
    "l": 0.46144,
    "c": 0.15284,
    "h": 273.1
  },
  "luminance": 0.09204
}

Semantic roles & 50–950 ramp

primary

#3F4CAC

secondary

#C1BA86

accent

#C652D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3F4CAC

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

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