#4F87E3#4F87E3

#4F87E3 is a light, vivid blue. Relative luminance 0.245; OKLCH L 62.9% C 0.151 H 259.8°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#4F87E3
RGB	rgb(79, 135, 227)
HSL	hsl(217, 73%, 60%)
HSV	hsv(217, 65%, 89%)
CMYK	cmyk(65.2%, 40.5%, 0%, 11%)
CIE-LAB	lab(56.62, 10.52, -52.24)
CIE-LCH	lch(56.62, 53.28, 281.38°)
OKLab	oklab(62.92% -0.0267 -0.1488)
OKLCH	oklch(62.92% 0.151 259.8)
XYZ	xyz(25.7486, 24.5338, 76.0367)
Luminance	0.2454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F87E3 #E3AB4F

analogous

#4FD1E3 #4F87E3 #614FE3

triadic

#4F87E3 #E34F87 #87E34F

tetradic

#4F87E3 #E34FD1 #E3AB4F #4FE361

square

#4F87E3 #E34FD1 #E3AB4F #4FE361

split-complementary

#4F87E3 #E3614F #D1E34F

monochromatic

#194C9E #2265D3 #4F87E3 #84ABEB #B9CFF4

Accessibility & contrast

On white

3.55

#4F87E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#4F87E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F87E3

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F87E3	#FFFFFF	#000000	##000000
##4F87E3	1.00	3.55	5.91	5.91
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D8FE7

Deuteranopia (green-blind)

#4681E1

Tritanopia (blue-blind)

#009CAA

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #4f87e3;
/* rgb */ color: rgb(79, 135, 227);
/* oklch */ color: oklch(62.9% 0.151 259.8);

Tailwind

colors: {
  custom: {
    50: '#8ea9ec',
    500: '#4f87e3',
    950: '#000000',
  },
}

SCSS

$custom: #4f87e3;
$custom-light: #8ea9ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4f87e3",
  "rgb": {
    "r": 79,
    "g": 135,
    "b": 227
  },
  "hsl": {
    "h": 217.297,
    "s": 72.549,
    "l": 60
  },
  "oklch": {
    "l": 0.62917,
    "c": 0.15123,
    "h": 259.8
  },
  "luminance": 0.24536
}

Semantic roles & 50–950 ramp

primary

#4F87E3

secondary

#E3CEAA

accent

#AA39EF

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #4F87E3

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

Preview Lab → · Contrast checker → · Palette generator →