#4F81F4#4F81F4

#4F81F4 is a light, vivid blue. Relative luminance 0.239; OKLCH L 62.7% C 0.181 H 264.2°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#4F81F4
RGB	rgb(79, 129, 244)
HSL	hsl(222, 88%, 63%)
HSV	hsv(222, 68%, 96%)
CMYK	cmyk(67.6%, 47.1%, 0%, 4.3%)
CIE-LAB	lab(55.98, 20.04, -62.71)
CIE-LCH	lch(55.98, 65.84, 287.72°)
OKLab	oklab(62.74% -0.0183 -0.1797)
OKLCH	oklch(62.74% 0.181 264.2)
XYZ	xyz(27.3981, 23.8917, 88.7381)
Luminance	0.2389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F81F4 #F4C24F

analogous

#4FD3F4 #4F81F4 #6F4FF4

triadic

#4F81F4 #F44F81 #81F44F

tetradic

#4F81F4 #F44FD3 #F4C24F #4FF46F

square

#4F81F4 #F44FD3 #F4C24F #4FF46F

split-complementary

#4F81F4 #F46F4F #D3F44F

monochromatic

#0C41BD #1558F0 #4F81F4 #89AAF8 #C2D3FB

Accessibility & contrast

On white

3.63

#4F81F4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#4F81F4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F81F4

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F81F4	#FFFFFF	#000000	##000000
##4F81F4	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#448EF8

Deuteranopia (green-blind)

#1C7FF2

Tritanopia (blue-blind)

#009CAF

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #4f81f4;
/* rgb */ color: rgb(79, 129, 244);
/* oklch */ color: oklch(62.7% 0.181 264.2);

Tailwind

colors: {
  custom: {
    50: '#91a5f8',
    500: '#4f81f4',
    950: '#000000',
  },
}

SCSS

$custom: #4f81f4;
$custom-light: #91a5f8;
$custom-dark: #000000;

JSON

{
  "hex": "#4f81f4",
  "rgb": {
    "r": 79,
    "g": 129,
    "b": 244
  },
  "hsl": {
    "h": 221.818,
    "s": 88.235,
    "l": 63.333
  },
  "oklch": {
    "l": 0.62742,
    "c": 0.18066,
    "h": 264.2
  },
  "luminance": 0.23894
}

Semantic roles & 50–950 ramp

primary

#4F81F4

secondary

#EDDBB2

accent

#A001E5

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #4F81F4

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

Preview Lab → · Contrast checker → · Palette generator →