#3F52AA#3F52AA

#3F52AA is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.2% C 0.142 H 270.9°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F52AA
RGB	rgb(63, 82, 170)
HSL	hsl(229, 46%, 46%)
HSV	hsv(229, 63%, 67%)
CMYK	cmyk(62.9%, 51.8%, 0%, 33.3%)
CIE-LAB	lab(37.83, 21.02, -49.59)
CIE-LCH	lch(37.83, 53.87, 292.97°)
OKLab	oklab(47.19% 0.0022 -0.1421)
OKLCH	oklch(47.19% 0.142 270.9)
XYZ	xyz(12.3205, 9.9926, 39.3019)
Luminance	0.0999 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F52AA #AA973F

analogous

#3F87AA #3F52AA #613FAA

triadic

#3F52AA #AA3F52 #52AA3F

tetradic

#3F52AA #AA3F87 #AA973F #3FAA61

square

#3F52AA #AA3F87 #AA973F #3FAA61

split-complementary

#3F52AA #AA613F #87AA3F

monochromatic

#1E2751 #2E3C7D #3F52AA #6273C5 #8E9BD5

Accessibility & contrast

On white

7.00

#3F52AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#3F52AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F52AA

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F52AA	#FFFFFF	#000000	##FFFFFF
##3F52AA	1.00	7.00	3.00	7.00
#FFFFFF	7.00	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F5EAD

Deuteranopia (green-blind)

#0054A8

Tritanopia (blue-blind)

#006676

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3f52aa;
/* rgb */ color: rgb(63, 82, 170);
/* oklch */ color: oklch(47.2% 0.142 270.9);

Tailwind

colors: {
  custom: {
    50: '#7f82c4',
    500: '#3f52aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f52aa;
$custom-light: #7f82c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f52aa",
  "rgb": {
    "r": 63,
    "g": 82,
    "b": 170
  },
  "hsl": {
    "h": 229.346,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.47194,
    "c": 0.14214,
    "h": 270.9
  },
  "luminance": 0.09994
}

Semantic roles & 50–950 ramp

primary

#3F52AA

secondary

#C0B685

accent

#BE52D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3F52AA

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

Preview Lab → · Contrast checker → · Palette generator →