#3F5FA9#3F5FA9

#3F5FA9 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 49.9% C 0.124 H 264.7°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FA9
RGB	rgb(63, 95, 169)
HSL	hsl(222, 46%, 45%)
HSV	hsv(222, 63%, 66%)
CMYK	cmyk(62.7%, 43.8%, 0%, 33.7%)
CIE-LAB	lab(41.38, 12.25, -43.30)
CIE-LCH	lch(41.38, 45.00, 285.80°)
OKLab	oklab(49.88% -0.0114 -0.1234)
OKLCH	oklch(49.88% 0.124 264.7)
XYZ	xyz(13.3011, 12.1046, 39.1639)
Luminance	0.1211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FA9 #A9893F

analogous

#3F94A9 #3F5FA9 #543FA9

triadic

#3F5FA9 #A93F5F #5FA93F

tetradic

#3F5FA9 #A93F94 #A9893F #3FA954

square

#3F5FA9 #A93F94 #A9893F #3FA954

split-complementary

#3F5FA9 #A9543F #94A93F

monochromatic

#1E2D50 #2E467C #3F5FA9 #617FC4 #8EA3D5

Accessibility & contrast

On white

6.14

#3F5FA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#3F5FA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FA9

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FA9	#FFFFFF	#000000	##FFFFFF
##3F5FA9	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D67AC

Deuteranopia (green-blind)

#2D5DA7

Tritanopia (blue-blind)

#00707C

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f5fa9;
/* rgb */ color: rgb(63, 95, 169);
/* oklch */ color: oklch(49.9% 0.124 264.7);

Tailwind

colors: {
  custom: {
    50: '#7e8cc3',
    500: '#3f5fa9',
    950: '#000000',
  },
}

SCSS

$custom: #3f5fa9;
$custom-light: #7e8cc3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5fa9",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 169
  },
  "hsl": {
    "h": 221.887,
    "s": 45.69,
    "l": 45.49
  },
  "oklch": {
    "l": 0.49883,
    "c": 0.12398,
    "h": 264.7
  },
  "luminance": 0.12106
}

Semantic roles & 50–950 ramp

primary

#3F5FA9

secondary

#C0AE84

accent

#AE52D5

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C12

muted

#7C7D81

Preview Lab

Preview with #3F5FA9

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

Preview Lab → · Contrast checker → · Palette generator →