#3F5EF0#3F5EF0

#3F5EF0 is a mid, highly saturated blue. Relative luminance 0.154; OKLCH L 55.0% C 0.221 H 268.6°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#3F5EF0
RGB	rgb(63, 94, 240)
HSL	hsl(229, 86%, 59%)
HSV	hsv(229, 74%, 94%)
CMYK	cmyk(73.8%, 60.8%, 0%, 5.9%)
CIE-LAB	lab(46.11, 38.22, -76.51)
CIE-LCH	lch(46.11, 85.53, 296.55°)
OKLab	oklab(55.03% -0.0053 -0.2211)
OKLCH	oklch(55.03% 0.221 268.6)
XYZ	xyz(21.7753, 15.3511, 84.2366)
Luminance	0.1535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5EF0 #F0D13F

analogous

#3FB6F0 #3F5EF0 #793FF0

triadic

#3F5EF0 #F03F5E #5EF03F

tetradic

#3F5EF0 #F03FB6 #F0D13F #3FF079

square

#3F5EF0 #F03FB6 #F0D13F #3FF079

split-complementary

#3F5EF0 #F0793F #B6F03F

monochromatic

#0D28A8 #1236E0 #3F5EF0 #788EF4 #B1BDF9

Accessibility & contrast

On white

5.16

#3F5EF0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#3F5EF0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5EF0

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5EF0	#FFFFFF	#000000	##FFFFFF
##3F5EF0	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F5

Deuteranopia (green-blind)

#0065ED

Tritanopia (blue-blind)

#00849E

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3f5ef0;
/* rgb */ color: rgb(63, 94, 240);
/* oklch */ color: oklch(55.0% 0.221 268.6);

Tailwind

colors: {
  custom: {
    50: '#8c8bf6',
    500: '#3f5ef0',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ef0;
$custom-light: #8c8bf6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ef0",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 240
  },
  "hsl": {
    "h": 229.492,
    "s": 85.507,
    "l": 59.412
  },
  "oklch": {
    "l": 0.55027,
    "c": 0.22115,
    "h": 268.6
  },
  "luminance": 0.15353
}

Semantic roles & 50–950 ramp

primary

#3F5EF0

secondary

#E8DCA3

accent

#D72CFC

background

#F9F8FF

surface

#F2F0FF

border

#CCCBD7

text

#0E0C17

muted

#7E7D85

Preview Lab

Preview with #3F5EF0

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

Preview Lab → · Contrast checker → · Palette generator →