#3F4CBA#3F4CBA

#3F4CBA is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.3% C 0.172 H 272.8°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#3F4CBA
RGB	rgb(63, 76, 186)
HSL	hsl(234, 49%, 49%)
HSV	hsv(234, 66%, 73%)
CMYK	cmyk(66.1%, 59.1%, 0%, 27.1%)
CIE-LAB	lab(37.43, 30.56, -59.70)
CIE-LCH	lch(37.43, 67.06, 297.11°)
OKLab	oklab(47.26% 0.0084 -0.1719)
OKLCH	oklch(47.26% 0.172 272.8)
XYZ	xyz(13.4943, 9.7696, 47.6194)
Luminance	0.0977 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4CBA #BAAD3F

analogous

#3F8ABA #3F4CBA #703FBA

triadic

#3F4CBA #BA3F4C #4CBA3F

tetradic

#3F4CBA #BA3F8A #BAAD3F #3FBA70

square

#3F4CBA #BA3F8A #BAAD3F #3FBA70

split-complementary

#3F4CBA #BA703F #8ABA3F

monochromatic

#20275F #30398C #3F4CBA #6A74CC #979FDC

Accessibility & contrast

On white

7.11

#3F4CBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#3F4CBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4CBA

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4CBA	#FFFFFF	#000000	##FFFFFF
##3F4CBA	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBE

Deuteranopia (green-blind)

#0053B8

Tritanopia (blue-blind)

#00677B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3f4cba;
/* rgb */ color: rgb(63, 76, 186);
/* oklch */ color: oklch(47.3% 0.172 272.8);

Tailwind

colors: {
  custom: {
    50: '#827ed0',
    500: '#3f4cba',
    950: '#000000',
  },
}

SCSS

$custom: #3f4cba;
$custom-light: #827ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4cba",
  "rgb": {
    "r": 63,
    "g": 76,
    "b": 186
  },
  "hsl": {
    "h": 233.659,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.4726,
    "c": 0.17213,
    "h": 272.8
  },
  "luminance": 0.09771
}

Semantic roles & 50–950 ramp

primary

#3F4CBA

secondary

#C8C18D

accent

#CA4FD9

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #3F4CBA

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

Preview Lab → · Contrast checker → · Palette generator →