#3F4ABC#3F4ABC

#3F4ABC is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.1% C 0.177 H 273.3°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#3F4ABC
RGB	rgb(63, 74, 188)
HSL	hsl(235, 50%, 49%)
HSV	hsv(235, 66%, 74%)
CMYK	cmyk(66.5%, 60.6%, 0%, 26.3%)
CIE-LAB	lab(37.09, 32.53, -61.43)
CIE-LCH	lch(37.09, 69.51, 297.90°)
OKLab	oklab(47.06% 0.0101 -0.177)
OKLCH	oklch(47.06% 0.177 273.3)
XYZ	xyz(13.5728, 9.5839, 48.7018)
Luminance	0.0959 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4ABC #BCB13F

analogous

#3F89BC #3F4ABC #733FBC

triadic

#3F4ABC #BC3F4A #4ABC3F

tetradic

#3F4ABC #BC3F89 #BCB13F #3FBC73

square

#3F4ABC #BC3F89 #BCB13F #3FBC73

split-complementary

#3F4ABC #BC733F #89BC3F

monochromatic

#202660 #30388E #3F4ABC #6B74CD #999FDD

Accessibility & contrast

On white

7.20

#3F4ABC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#3F4ABC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4ABC

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4ABC	#FFFFFF	#000000	##FFFFFF
##3F4ABC	1.00	7.20	2.92	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DC0

Deuteranopia (green-blind)

#0052BA

Tritanopia (blue-blind)

#00667C

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3f4abc;
/* rgb */ color: rgb(63, 74, 188);
/* oklch */ color: oklch(47.1% 0.177 273.3);

Tailwind

colors: {
  custom: {
    50: '#837cd1',
    500: '#3f4abc',
    950: '#000000',
  },
}

SCSS

$custom: #3f4abc;
$custom-light: #837cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4abc",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 188
  },
  "hsl": {
    "h": 234.72,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.47057,
    "c": 0.17731,
    "h": 273.3
  },
  "luminance": 0.09585
}

Semantic roles & 50–950 ramp

primary

#3F4ABC

secondary

#C9C38E

accent

#CD4ED9

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #3F4ABC

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

Preview Lab → · Contrast checker → · Palette generator →