#3F5ABA#3F5ABA

#3F5ABA is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.0% C 0.154 H 268.5°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#3F5ABA
RGB	rgb(63, 90, 186)
HSL	hsl(227, 49%, 49%)
HSV	hsv(227, 66%, 73%)
CMYK	cmyk(66.1%, 51.6%, 0%, 27.1%)
CIE-LAB	lab(41.08, 21.55, -53.78)
CIE-LCH	lch(41.08, 57.94, 291.83°)
OKLab	oklab(50% -0.0041 -0.1543)
OKLCH	oklch(50% 0.154 268.5)
XYZ	xyz(14.5660, 11.9129, 47.9767)
Luminance	0.1191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5ABA #BA9F3F

analogous

#3F98BA #3F5ABA #623FBA

triadic

#3F5ABA #BA3F5A #5ABA3F

tetradic

#3F5ABA #BA3F98 #BA9F3F #3FBA62

square

#3F5ABA #BA3F98 #BA9F3F #3FBA62

split-complementary

#3F5ABA #BA623F #98BA3F

monochromatic

#202E5F #30448C #3F5ABA #6A7FCC #97A6DC

Accessibility & contrast

On white

6.21

#3F5ABA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#3F5ABA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5ABA

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5ABA	#FFFFFF	#000000	##FFFFFF
##3F5ABA	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2067BD

Deuteranopia (green-blind)

#005CB8

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f5aba;
/* rgb */ color: rgb(63, 90, 186);
/* oklch */ color: oklch(50.0% 0.154 268.5);

Tailwind

colors: {
  custom: {
    50: '#8188cf',
    500: '#3f5aba',
    950: '#000000',
  },
}

SCSS

$custom: #3f5aba;
$custom-light: #8188cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5aba",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 186
  },
  "hsl": {
    "h": 226.829,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.49999,
    "c": 0.15439,
    "h": 268.5
  },
  "luminance": 0.11914
}

Semantic roles & 50–950 ramp

primary

#3F5ABA

secondary

#C8BB8D

accent

#BB4FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3F5ABA

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

Preview Lab → · Contrast checker → · Palette generator →