#3F52AF#3F52AF

#3F52AF is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.6% C 0.149 H 271.0°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F52AF
RGB	rgb(63, 82, 175)
HSL	hsl(230, 47%, 47%)
HSV	hsv(230, 64%, 69%)
CMYK	cmyk(64%, 53.1%, 0%, 31.4%)
CIE-LAB	lab(38.17, 22.80, -52.00)
CIE-LCH	lch(38.17, 56.78, 293.67°)
OKLab	oklab(47.56% 0.0026 -0.1492)
OKLCH	oklch(47.56% 0.149 271)
XYZ	xyz(12.8025, 10.1854, 41.8404)
Luminance	0.1019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F52AF #AF9C3F

analogous

#3F8AAF #3F52AF #643FAF

triadic

#3F52AF #AF3F52 #52AF3F

tetradic

#3F52AF #AF3F8A #AF9C3F #3FAF64

square

#3F52AF #AF3F8A #AF9C3F #3FAF64

split-complementary

#3F52AF #AF643F #8AAF3F

monochromatic

#1F2855 #2F3D82 #3F52AF #6475C7 #919DD7

Accessibility & contrast

On white

6.91

#3F52AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3F52AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F52AF

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F52AF	#FFFFFF	#000000	##FFFFFF
##3F52AF	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#175FB2

Deuteranopia (green-blind)

#0055AD

Tritanopia (blue-blind)

#006878

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f52af;
/* rgb */ color: rgb(63, 82, 175);
/* oklch */ color: oklch(47.6% 0.149 271.0);

Tailwind

colors: {
  custom: {
    50: '#8082c7',
    500: '#3f52af',
    950: '#000000',
  },
}

SCSS

$custom: #3f52af;
$custom-light: #8082c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f52af",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 175
  },
  "hsl": {
    "h": 229.821,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.47564,
    "c": 0.14923,
    "h": 271
  },
  "luminance": 0.10186
}

Semantic roles & 50–950 ramp

primary

#3F52AF

secondary

#C3B987

accent

#C051D7

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3F52AF

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

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