#3F5FAC#3F5FAC

#3F5FAC is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.1% C 0.128 H 265.1°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FAC
RGB	rgb(63, 95, 172)
HSL	hsl(222, 46%, 46%)
HSV	hsv(222, 63%, 67%)
CMYK	cmyk(63.4%, 44.8%, 0%, 32.5%)
CIE-LAB	lab(41.56, 13.32, -44.78)
CIE-LCH	lch(41.56, 46.72, 286.56°)
OKLab	oklab(50.08% -0.0109 -0.1278)
OKLCH	oklch(50.08% 0.128 265.1)
XYZ	xyz(13.5859, 12.2185, 40.6642)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FAC #AC8C3F

analogous

#3F95AC #3F5FAC #553FAC

triadic

#3F5FAC #AC3F5F #5FAC3F

tetradic

#3F5FAC #AC3F95 #AC8C3F #3FAC55

square

#3F5FAC #AC3F95 #AC8C3F #3FAC55

split-complementary

#3F5FAC #AC553F #95AC3F

monochromatic

#1E2E52 #2F467F #3F5FAC #6380C6 #8FA4D6

Accessibility & contrast

On white

6.10

#3F5FAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#3F5FAC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FAC

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FAC	#FFFFFF	#000000	##FFFFFF
##3F5FAC	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B67AF

Deuteranopia (green-blind)

#2A5DAA

Tritanopia (blue-blind)

#00707D

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f5fac;
/* rgb */ color: rgb(63, 95, 172);
/* oklch */ color: oklch(50.1% 0.128 265.1);

Tailwind

colors: {
  custom: {
    50: '#7f8cc5',
    500: '#3f5fac',
    950: '#000000',
  },
}

SCSS

$custom: #3f5fac;
$custom-light: #7f8cc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5fac",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 172
  },
  "hsl": {
    "h": 222.385,
    "s": 46.383,
    "l": 46.078
  },
  "oklch": {
    "l": 0.50079,
    "c": 0.12827,
    "h": 265.1
  },
  "luminance": 0.1222
}

Semantic roles & 50–950 ramp

primary

#3F5FAC

secondary

#C1B086

accent

#AF52D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3F5FAC

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

Preview Lab → · Contrast checker → · Palette generator →