#3F5FF0#3F5FF0

#3F5FF0 is a mid, highly saturated blue. Relative luminance 0.155; OKLCH L 55.2% C 0.220 H 268.5°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#3F5FF0
RGB	rgb(63, 95, 240)
HSL	hsl(229, 86%, 59%)
HSV	hsv(229, 74%, 94%)
CMYK	cmyk(73.8%, 60.4%, 0%, 5.9%)
CIE-LAB	lab(46.35, 37.61, -76.12)
CIE-LCH	lch(46.35, 84.90, 296.29°)
OKLab	oklab(55.21% -0.0059 -0.2199)
OKLCH	oklch(55.21% 0.22 268.5)
XYZ	xyz(21.8648, 15.5301, 84.2665)
Luminance	0.1553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5FF0 #F0D03F

analogous

#3FB7F0 #3F5FF0 #783FF0

triadic

#3F5FF0 #F03F5F #5FF03F

tetradic

#3F5FF0 #F03FB7 #F0D03F #3FF078

square

#3F5FF0 #F03FB7 #F0D03F #3FF078

split-complementary

#3F5FF0 #F0783F #B7F03F

monochromatic

#0D29A8 #1237E0 #3F5FF0 #788EF4 #B1BEF9

Accessibility & contrast

On white

5.11

#3F5FF0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#3F5FF0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5FF0

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5FF0	#FFFFFF	#000000	##FFFFFF
##3F5FF0	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F5

Deuteranopia (green-blind)

#0066ED

Tritanopia (blue-blind)

#00849E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f5ff0;
/* rgb */ color: rgb(63, 95, 240);
/* oklch */ color: oklch(55.2% 0.220 268.5);

Tailwind

colors: {
  custom: {
    50: '#8c8cf6',
    500: '#3f5ff0',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ff0;
$custom-light: #8c8cf6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ff0",
  "rgb": {
    "r": 63,
    "g": 95,
    "b": 240
  },
  "hsl": {
    "h": 229.153,
    "s": 85.507,
    "l": 59.412
  },
  "oklch": {
    "l": 0.55205,
    "c": 0.22001,
    "h": 268.5
  },
  "luminance": 0.15532
}

Semantic roles & 50–950 ramp

primary

#3F5FF0

secondary

#E8DBA3

accent

#D62CFC

background

#F9F8FF

surface

#F2F0FF

border

#CCCBD7

text

#0E0C17

muted

#7E7D85

Preview Lab

Preview with #3F5FF0

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

Preview Lab → · Contrast checker → · Palette generator →