#3F5CF0#3F5CF0

#3F5CF0 is a mid, highly saturated blue. Relative luminance 0.150; OKLCH L 54.7% C 0.223 H 269.0°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#3F5CF0
RGB	rgb(63, 92, 240)
HSL	hsl(230, 86%, 59%)
HSV	hsv(230, 74%, 94%)
CMYK	cmyk(73.8%, 61.7%, 0%, 5.9%)
CIE-LAB	lab(45.63, 39.46, -77.29)
CIE-LCH	lch(45.63, 86.78, 297.04°)
OKLab	oklab(54.67% -0.004 -0.2234)
OKLCH	oklch(54.67% 0.223 269)
XYZ	xyz(21.5998, 15.0000, 84.1781)
Luminance	0.1500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5CF0 #F0D33F

analogous

#3FB5F0 #3F5CF0 #7A3FF0

triadic

#3F5CF0 #F03F5C #5CF03F

tetradic

#3F5CF0 #F03FB5 #F0D33F #3FF07A

square

#3F5CF0 #F03FB5 #F0D33F #3FF07A

split-complementary

#3F5CF0 #F07A3F #B5F03F

monochromatic

#0D26A8 #1233E0 #3F5CF0 #788CF4 #B1BCF9

Accessibility & contrast

On white

5.25

#3F5CF0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#3F5CF0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5CF0

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5CF0	#FFFFFF	#000000	##FFFFFF
##3F5CF0	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075F5

Deuteranopia (green-blind)

#0064ED

Tritanopia (blue-blind)

#00829D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3f5cf0;
/* rgb */ color: rgb(63, 92, 240);
/* oklch */ color: oklch(54.7% 0.223 269.0);

Tailwind

colors: {
  custom: {
    50: '#8c8af6',
    500: '#3f5cf0',
    950: '#000000',
  },
}

SCSS

$custom: #3f5cf0;
$custom-light: #8c8af6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5cf0",
  "rgb": {
    "r": 63,
    "g": 92,
    "b": 240
  },
  "hsl": {
    "h": 230.169,
    "s": 85.507,
    "l": 59.412
  },
  "oklch": {
    "l": 0.54674,
    "c": 0.22344,
    "h": 269
  },
  "luminance": 0.15002
}

Semantic roles & 50–950 ramp

primary

#3F5CF0

secondary

#E8DDA3

accent

#DA2CFC

background

#F9F8FF

surface

#F2F0FF

border

#CCCBD7

text

#0E0B17

muted

#7E7C85

Preview Lab

Preview with #3F5CF0

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

Preview Lab → · Contrast checker → · Palette generator →