#3F4BAF#3F4BAF

#3F4BAF is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.2% C 0.158 H 273.3°. Best body text is #FFFFFF at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#3F4BAF
RGB	rgb(63, 75, 175)
HSL	hsl(234, 47%, 47%)
HSV	hsv(234, 64%, 69%)
CMYK	cmyk(64%, 57.1%, 0%, 31.4%)
CIE-LAB	lab(36.33, 27.34, -54.98)
CIE-LCH	lch(36.33, 61.40, 296.44°)
OKLab	oklab(46.18% 0.0092 -0.158)
OKLCH	oklch(46.18% 0.158 273.3)
XYZ	xyz(12.3013, 9.1830, 41.6734)
Luminance	0.0918 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4BAF #AFA33F

analogous

#3F83AF #3F4BAF #6B3FAF

triadic

#3F4BAF #AF3F4B #4BAF3F

tetradic

#3F4BAF #AF3F83 #AFA33F #3FAF6B

square

#3F4BAF #AF3F83 #AFA33F #3FAF6B

split-complementary

#3F4BAF #AF6B3F #83AF3F

monochromatic

#1F2455 #2F3882 #3F4BAF #646FC7 #9199D7

Accessibility & contrast

On white

7.40

#3F4BAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#3F4BAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4BAF

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4BAF	#FFFFFF	#000000	##FFFFFF
##3F4BAF	1.00	7.40	2.84	7.40
#FFFFFF	7.40	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB2

Deuteranopia (green-blind)

#0051AD

Tritanopia (blue-blind)

#006375

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f4baf;
/* rgb */ color: rgb(63, 75, 175);
/* oklch */ color: oklch(46.2% 0.158 273.3);

Tailwind

colors: {
  custom: {
    50: '#807dc8',
    500: '#3f4baf',
    950: '#000000',
  },
}

SCSS

$custom: #3f4baf;
$custom-light: #807dc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4baf",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 175
  },
  "hsl": {
    "h": 233.571,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.46185,
    "c": 0.15832,
    "h": 273.3
  },
  "luminance": 0.09184
}

Semantic roles & 50–950 ramp

primary

#3F4BAF

secondary

#C3BC87

accent

#C851D7

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3F4BAF

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

Preview Lab → · Contrast checker → · Palette generator →