#4F8EF3#4F8EF3

#4F8EF3 is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.4% C 0.165 H 259.4°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#4F8EF3
RGB	rgb(79, 142, 243)
HSL	hsl(217, 87%, 63%)
HSV	hsv(217, 67%, 95%)
CMYK	cmyk(67.5%, 41.6%, 0%, 4.7%)
CIE-LAB	lab(59.41, 11.82, -56.66)
CIE-LCH	lch(59.41, 57.88, 281.78°)
OKLab	oklab(65.36% -0.0302 -0.1617)
OKLCH	oklch(65.36% 0.165 259.4)
XYZ	xyz(29.0693, 27.4764, 88.5481)
Luminance	0.2748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F8EF3 #F3B44F

analogous

#4FE0F3 #4F8EF3 #624FF3

triadic

#4F8EF3 #F34F8E #8EF34F

tetradic

#4F8EF3 #F34FE0 #F3B44F #4FF362

square

#4F8EF3 #F34FE0 #F3B44F #4FF362

split-complementary

#4F8EF3 #F3624F #E0F34F

monochromatic

#0D50BB #1669EF #4F8EF3 #88B3F7 #C2D8FB

Accessibility & contrast

On white

3.23

#4F8EF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#4F8EF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F8EF3

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F8EF3	#FFFFFF	#000000	##000000
##4F8EF3	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E97F7

Deuteranopia (green-blind)

#4488F1

Tritanopia (blue-blind)

#00A5B5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #4f8ef3;
/* rgb */ color: rgb(79, 142, 243);
/* oklch */ color: oklch(65.4% 0.165 259.4);

Tailwind

colors: {
  custom: {
    50: '#91aef7',
    500: '#4f8ef3',
    950: '#000000',
  },
}

SCSS

$custom: #4f8ef3;
$custom-light: #91aef7;
$custom-dark: #000000;

JSON

{
  "hex": "#4f8ef3",
  "rgb": {
    "r": 79,
    "g": 142,
    "b": 243
  },
  "hsl": {
    "h": 216.951,
    "s": 87.234,
    "l": 63.137
  },
  "oklch": {
    "l": 0.65365,
    "c": 0.16453,
    "h": 259.4
  },
  "luminance": 0.27479
}

Semantic roles & 50–950 ramp

primary

#4F8EF3

secondary

#ECD6B2

accent

#8D02E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #4F8EF3

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

Preview Lab → · Contrast checker → · Palette generator →