#4F8BF3#4F8BF3

#4F8BF3 is a light, vivid blue. Relative luminance 0.266; OKLCH L 64.7% C 0.168 H 260.6°. Best body text is #000000 at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#4F8BF3
RGB	rgb(79, 139, 243)
HSL	hsl(218, 87%, 63%)
HSV	hsv(218, 67%, 95%)
CMYK	cmyk(67.5%, 42.8%, 0%, 4.7%)
CIE-LAB	lab(58.60, 13.62, -57.96)
CIE-LCH	lch(58.60, 59.54, 283.23°)
OKLab	oklab(64.74% -0.0274 -0.1656)
OKLCH	oklch(64.74% 0.168 260.6)
XYZ	xyz(28.6290, 26.5957, 88.4013)
Luminance	0.2660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F8BF3 #F3B74F

analogous

#4FDDF3 #4F8BF3 #654FF3

triadic

#4F8BF3 #F34F8B #8BF34F

tetradic

#4F8BF3 #F34FDD #F3B74F #4FF365

square

#4F8BF3 #F34FDD #F3B74F #4FF365

split-complementary

#4F8BF3 #F3654F #DDF34F

monochromatic

#0D4CBB #1665EF #4F8BF3 #88B1F7 #C2D7FB

Accessibility & contrast

On white

3.32

#4F8BF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.32

#4F8BF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F8BF3

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F8BF3	#FFFFFF	#000000	##000000
##4F8BF3	1.00	3.32	6.32	6.32
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.32	21.00	1.00	1.00
##000000	6.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5995F7

Deuteranopia (green-blind)

#3D86F1

Tritanopia (blue-blind)

#00A3B3

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #4f8bf3;
/* rgb */ color: rgb(79, 139, 243);
/* oklch */ color: oklch(64.7% 0.168 260.6);

Tailwind

colors: {
  custom: {
    50: '#91acf7',
    500: '#4f8bf3',
    950: '#000000',
  },
}

SCSS

$custom: #4f8bf3;
$custom-light: #91acf7;
$custom-dark: #000000;

JSON

{
  "hex": "#4f8bf3",
  "rgb": {
    "r": 79,
    "g": 139,
    "b": 243
  },
  "hsl": {
    "h": 218.049,
    "s": 87.234,
    "l": 63.137
  },
  "oklch": {
    "l": 0.64735,
    "c": 0.16786,
    "h": 260.6
  },
  "luminance": 0.26599
}

Semantic roles & 50–950 ramp

primary

#4F8BF3

secondary

#ECD7B2

accent

#9102E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #4F8BF3

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

Preview Lab → · Contrast checker → · Palette generator →