#3F56AF#3F56AF

#3F56AF is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.4% C 0.144 H 269.5°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F56AF
RGB	rgb(63, 86, 175)
HSL	hsl(228, 47%, 47%)
HSV	hsv(228, 64%, 69%)
CMYK	cmyk(64%, 50.9%, 0%, 31.4%)
CIE-LAB	lab(39.25, 20.20, -50.26)
CIE-LCH	lch(39.25, 54.17, 291.90°)
OKLab	oklab(48.38% -0.0013 -0.144)
OKLCH	oklch(48.38% 0.144 269.5)
XYZ	xyz(13.1129, 10.8063, 41.9439)
Luminance	0.1081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56AF #AF983F

analogous

#3F8EAF #3F56AF #603FAF

triadic

#3F56AF #AF3F56 #56AF3F

tetradic

#3F56AF #AF3F8E #AF983F #3FAF60

square

#3F56AF #AF3F8E #AF983F #3FAF60

split-complementary

#3F56AF #AF603F #8EAF3F

monochromatic

#1F2A55 #2F4082 #3F56AF #6478C7 #919FD7

Accessibility & contrast

On white

6.64

#3F56AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3F56AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56AF

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56AF	#FFFFFF	#000000	##FFFFFF
##3F56AF	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2462B2

Deuteranopia (green-blind)

#0258AD

Tritanopia (blue-blind)

#006B7A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f56af;
/* rgb */ color: rgb(63, 86, 175);
/* oklch */ color: oklch(48.4% 0.144 269.5);

Tailwind

colors: {
  custom: {
    50: '#7f85c7',
    500: '#3f56af',
    950: '#000000',
  },
}

SCSS

$custom: #3f56af;
$custom-light: #7f85c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56af",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 175
  },
  "hsl": {
    "h": 227.679,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48379,
    "c": 0.14405,
    "h": 269.5
  },
  "luminance": 0.10807
}

Semantic roles & 50–950 ramp

primary

#3F56AF

secondary

#C3B687

accent

#BB51D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F56AF

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

Preview Lab → · Contrast checker → · Palette generator →