#3F5DF0#3F5DF0

#3F5DF0 is a mid, highly saturated blue. Relative luminance 0.152; OKLCH L 54.9% C 0.222 H 268.8°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DF0
RGB	rgb(63, 93, 240)
HSL	hsl(230, 86%, 59%)
HSV	hsv(230, 74%, 94%)
CMYK	cmyk(73.8%, 61.2%, 0%, 5.9%)
CIE-LAB	lab(45.87, 38.84, -76.90)
CIE-LCH	lch(45.87, 86.16, 296.80°)
OKLab	oklab(54.85% -0.0046 -0.2222)
OKLCH	oklch(54.85% 0.222 268.8)
XYZ	xyz(21.6870, 15.1744, 84.2072)
Luminance	0.1518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DF0 #F0D23F

analogous

#3FB5F0 #3F5DF0 #7A3FF0

triadic

#3F5DF0 #F03F5D #5DF03F

tetradic

#3F5DF0 #F03FB5 #F0D23F #3FF07A

square

#3F5DF0 #F03FB5 #F0D23F #3FF07A

split-complementary

#3F5DF0 #F07A3F #B5F03F

monochromatic

#0D27A8 #1235E0 #3F5DF0 #788DF4 #B1BDF9

Accessibility & contrast

On white

5.20

#3F5DF0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#3F5DF0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DF0

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DF0	#FFFFFF	#000000	##FFFFFF
##3F5DF0	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075F5

Deuteranopia (green-blind)

#0065ED

Tritanopia (blue-blind)

#00839E

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3f5df0;
/* rgb */ color: rgb(63, 93, 240);
/* oklch */ color: oklch(54.9% 0.222 268.8);

Tailwind

colors: {
  custom: {
    50: '#8c8af6',
    500: '#3f5df0',
    950: '#000000',
  },
}

SCSS

$custom: #3f5df0;
$custom-light: #8c8af6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5df0",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 240
  },
  "hsl": {
    "h": 229.831,
    "s": 85.507,
    "l": 59.412
  },
  "oklch": {
    "l": 0.5485,
    "c": 0.2223,
    "h": 268.8
  },
  "luminance": 0.15177
}

Semantic roles & 50–950 ramp

primary

#3F5DF0

secondary

#E8DCA3

accent

#D92CFC

background

#F9F8FF

surface

#F2F0FF

border

#CCCBD7

text

#0E0B17

muted

#7E7C85

Preview Lab

Preview with #3F5DF0

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

Preview Lab → · Contrast checker → · Palette generator →