#3F4AAA#3F4AAA

#3F4AAA is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.6% C 0.153 H 273.8°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#3F4AAA
RGB	rgb(63, 74, 170)
HSL	hsl(234, 46%, 46%)
HSV	hsv(234, 63%, 67%)
CMYK	cmyk(62.9%, 56.5%, 0%, 33.3%)
CIE-LAB	lab(35.70, 26.23, -53.03)
CIE-LCH	lch(35.70, 59.16, 296.32°)
OKLab	oklab(45.6% 0.01 -0.1523)
OKLCH	oklch(45.6% 0.153 273.8)
XYZ	xyz(11.7520, 8.8556, 39.1124)
Luminance	0.0886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4AAA #AA9F3F

analogous

#3F7FAA #3F4AAA #693FAA

triadic

#3F4AAA #AA3F4A #4AAA3F

tetradic

#3F4AAA #AA3F7F #AA9F3F #3FAA69

square

#3F4AAA #AA3F7F #AA9F3F #3FAA69

split-complementary

#3F4AAA #AA693F #7FAA3F

monochromatic

#1E2351 #2E377D #3F4AAA #626CC5 #8E95D5

Accessibility & contrast

On white

7.58

#3F4AAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3F4AAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4AAA

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4AAA	#FFFFFF	#000000	##FFFFFF
##3F4AAA	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059AD

Deuteranopia (green-blind)

#004FA8

Tritanopia (blue-blind)

#006172

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3f4aaa;
/* rgb */ color: rgb(63, 74, 170);
/* oklch */ color: oklch(45.6% 0.153 273.8);

Tailwind

colors: {
  custom: {
    50: '#7f7cc4',
    500: '#3f4aaa',
    950: '#000000',
  },
}

SCSS

$custom: #3f4aaa;
$custom-light: #7f7cc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4aaa",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 170
  },
  "hsl": {
    "h": 233.832,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.45598,
    "c": 0.15265,
    "h": 273.8
  },
  "luminance": 0.08857
}

Semantic roles & 50–950 ramp

primary

#3F4AAA

secondary

#C0BA85

accent

#C852D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3F4AAA

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

Preview Lab → · Contrast checker → · Palette generator →