#4F87FF#4F87FF

#4F87FF is a light, vivid blue. Relative luminance 0.262; OKLCH L 64.7% C 0.188 H 263.3°. Best body text is #000000 at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#4F87FF
RGB	rgb(79, 135, 255)
HSL	hsl(221, 100%, 65%)
HSV	hsv(221, 69%, 100%)
CMYK	cmyk(69%, 47.1%, 0%, 0%)
CIE-LAB	lab(58.23, 20.20, -65.16)
CIE-LCH	lch(58.23, 68.22, 287.23°)
OKLab	oklab(64.68% -0.022 -0.1868)
OKLCH	oklch(64.68% 0.188 263.3)
XYZ	xyz(29.9320, 26.2071, 98.0694)
Luminance	0.2621 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F87FF #FFC74F

analogous

#4FDFFF #4F87FF #6F4FFF

triadic

#4F87FF #FF4F87 #87FF4F

tetradic

#4F87FF #FF4FDF #FFC74F #4FFF6F

square

#4F87FF #FF4FDF #FFC74F #4FFF6F

split-complementary

#4F87FF #FF6F4F #DFFF4F

monochromatic

#0043D4 #125DFF #4F87FF #8CB1FF #C9DAFF

Accessibility & contrast

On white

3.36

#4F87FF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.24

#4F87FF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F87FF

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F87FF	#FFFFFF	#000000	##000000
##4F87FF	1.00	3.36	6.24	6.24
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.24	21.00	1.00	1.00
##000000	6.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4695FF

Deuteranopia (green-blind)

#1884FD

Tritanopia (blue-blind)

#00A3B7

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #4f87ff;
/* rgb */ color: rgb(79, 135, 255);
/* oklch */ color: oklch(64.7% 0.188 263.3);

Tailwind

colors: {
  custom: {
    50: '#93a9ff',
    500: '#4f87ff',
    950: '#000000',
  },
}

SCSS

$custom: #4f87ff;
$custom-light: #93a9ff;
$custom-dark: #000000;

JSON

{
  "hex": "#4f87ff",
  "rgb": {
    "r": 79,
    "g": 135,
    "b": 255
  },
  "hsl": {
    "h": 220.909,
    "s": 100,
    "l": 65.49
  },
  "oklch": {
    "l": 0.64681,
    "c": 0.18812,
    "h": 263.3
  },
  "luminance": 0.2621
}

Semantic roles & 50–950 ramp

primary

#4F87FF

secondary

#F2E0B7

accent

#9C00E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0F0F18

muted

#7E7F86

Preview Lab

Preview with #4F87FF

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

Preview Lab → · Contrast checker → · Palette generator →