#3F5AAA#3F5AAA

#3F5AAA is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.9% C 0.132 H 267.4°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F5AAA
RGB	rgb(63, 90, 170)
HSL	hsl(225, 46%, 46%)
HSV	hsv(225, 63%, 67%)
CMYK	cmyk(62.9%, 47.1%, 0%, 33.3%)
CIE-LAB	lab(40.03, 15.83, -46.05)
CIE-LCH	lch(40.03, 48.70, 288.97°)
OKLab	oklab(48.87% -0.006 -0.1316)
OKLCH	oklch(48.87% 0.132 267.4)
XYZ	xyz(12.9593, 11.2702, 39.5149)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5AAA #AA8F3F

analogous

#3F8FAA #3F5AAA #593FAA

triadic

#3F5AAA #AA3F5A #5AAA3F

tetradic

#3F5AAA #AA3F8F #AA8F3F #3FAA59

square

#3F5AAA #AA3F8F #AA8F3F #3FAA59

split-complementary

#3F5AAA #AA593F #8FAA3F

monochromatic

#1E2B51 #2E427D #3F5AAA #627BC5 #8EA0D5

Accessibility & contrast

On white

6.45

#3F5AAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#3F5AAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5AAA

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5AAA	#FFFFFF	#000000	##FFFFFF
##3F5AAA	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3363AD

Deuteranopia (green-blind)

#205AA8

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f5aaa;
/* rgb */ color: rgb(63, 90, 170);
/* oklch */ color: oklch(48.9% 0.132 267.4);

Tailwind

colors: {
  custom: {
    50: '#7e88c4',
    500: '#3f5aaa',
    950: '#000000',
  },
}

SCSS

$custom: #3f5aaa;
$custom-light: #7e88c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5aaa",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 170
  },
  "hsl": {
    "h": 224.86,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.48868,
    "c": 0.13174,
    "h": 267.4
  },
  "luminance": 0.11271
}

Semantic roles & 50–950 ramp

primary

#3F5AAA

secondary

#C0B185

accent

#B452D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F5AAA

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

Preview Lab → · Contrast checker → · Palette generator →