#4F8BF0#4F8BF0

#4F8BF0 is a light, vivid blue. Relative luminance 0.264; OKLCH L 64.6% C 0.164 H 260.2°. Best body text is #000000 at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#4F8BF0
RGB	rgb(79, 139, 240)
HSL	hsl(218, 84%, 63%)
HSV	hsv(218, 67%, 94%)
CMYK	cmyk(67.1%, 42.1%, 0%, 5.9%)
CIE-LAB	lab(58.43, 12.58, -56.57)
CIE-LCH	lch(58.43, 57.95, 282.54°)
OKLab	oklab(64.55% -0.028 -0.1615)
OKLCH	oklch(64.55% 0.164 260.2)
XYZ	xyz(28.1796, 26.4159, 86.0349)
Luminance	0.2642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F8BF0 #F0B44F

analogous

#4FDBF0 #4F8BF0 #644FF0

triadic

#4F8BF0 #F04F8B #8BF04F

tetradic

#4F8BF0 #F04FDB #F0B44F #4FF064

square

#4F8BF0 #F04FDB #F0B44F #4FF064

split-complementary

#4F8BF0 #F0644F #DBF04F

monochromatic

#0F4DB5 #1766EB #4F8BF0 #87B0F5 #C0D5FA

Accessibility & contrast

On white

3.34

#4F8BF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.28

#4F8BF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F8BF0

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F8BF0	#FFFFFF	#000000	##000000
##4F8BF0	1.00	3.34	6.28	6.28
#FFFFFF	3.34	1.00	21.00	21.00
#000000	6.28	21.00	1.00	1.00
##000000	6.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B95F4

Deuteranopia (green-blind)

#4186EE

Tritanopia (blue-blind)

#00A2B2

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #4f8bf0;
/* rgb */ color: rgb(79, 139, 240);
/* oklch */ color: oklch(64.6% 0.164 260.2);

Tailwind

colors: {
  custom: {
    50: '#90acf5',
    500: '#4f8bf0',
    950: '#000000',
  },
}

SCSS

$custom: #4f8bf0;
$custom-light: #90acf5;
$custom-dark: #000000;

JSON

{
  "hex": "#4f8bf0",
  "rgb": {
    "r": 79,
    "g": 139,
    "b": 240
  },
  "hsl": {
    "h": 217.64,
    "s": 84.293,
    "l": 62.549
  },
  "oklch": {
    "l": 0.64551,
    "c": 0.16393,
    "h": 260.2
  },
  "luminance": 0.26419
}

Semantic roles & 50–950 ramp

primary

#4F8BF0

secondary

#EBD5B0

accent

#8F05E1

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #4F8BF0

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

Preview Lab → · Contrast checker → · Palette generator →