#3F5FAE#3F5FAE

#3F5FAE is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.2% C 0.131 H 265.4°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FAE
RGB	rgb(63, 95, 174)
HSL	hsl(223, 47%, 46%)
HSV	hsv(223, 64%, 68%)
CMYK	cmyk(63.8%, 45.4%, 0%, 31.8%)
CIE-LAB	lab(41.68, 14.03, -45.77)
CIE-LCH	lch(41.68, 47.87, 287.05°)
OKLab	oklab(50.21% -0.0106 -0.1307)
OKLCH	oklch(50.21% 0.131 265.4)
XYZ	xyz(13.7795, 12.2959, 41.6834)
Luminance	0.1230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FAE #AE8E3F

analogous

#3F97AE #3F5FAE #573FAE

triadic

#3F5FAE #AE3F5F #5FAE3F

tetradic

#3F5FAE #AE3F97 #AE8E3F #3FAE57

square

#3F5FAE #AE3F97 #AE8E3F #3FAE57

split-complementary

#3F5FAE #AE573F #97AE3F

monochromatic

#1E2E54 #2F4681 #3F5FAE #6480C7 #90A5D7

Accessibility & contrast

On white

6.07

#3F5FAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#3F5FAE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FAE

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FAE	#FFFFFF	#000000	##FFFFFF
##3F5FAE	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3968B1

Deuteranopia (green-blind)

#275EAC

Tritanopia (blue-blind)

#00717E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f5fae;
/* rgb */ color: rgb(63, 95, 174);
/* oklch */ color: oklch(50.2% 0.131 265.4);

Tailwind

colors: {
  custom: {
    50: '#7f8cc7',
    500: '#3f5fae',
    950: '#000000',
  },
}

SCSS

$custom: #3f5fae;
$custom-light: #7f8cc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5fae",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 174
  },
  "hsl": {
    "h": 222.703,
    "s": 46.835,
    "l": 46.471
  },
  "oklch": {
    "l": 0.50212,
    "c": 0.13113,
    "h": 265.4
  },
  "luminance": 0.12297
}

Semantic roles & 50–950 ramp

primary

#3F5FAE

secondary

#C2B187

accent

#B051D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3F5FAE

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

Preview Lab → · Contrast checker → · Palette generator →