#4F88F0#4F88F0

#4F88F0 is a light, vivid blue. Relative luminance 0.256; OKLCH L 63.9% C 0.167 H 261.3°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#4F88F0
RGB	rgb(79, 136, 240)
HSL	hsl(219, 84%, 63%)
HSV	hsv(219, 67%, 94%)
CMYK	cmyk(67.1%, 43.3%, 0%, 5.9%)
CIE-LAB	lab(57.62, 14.39, -57.87)
CIE-LCH	lch(57.62, 59.64, 283.97°)
OKLab	oklab(63.92% -0.0252 -0.1654)
OKLCH	oklch(63.92% 0.167 261.3)
XYZ	xyz(27.7512, 25.5591, 85.8921)
Luminance	0.2556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F88F0 #F0B74F

analogous

#4FD8F0 #4F88F0 #674FF0

triadic

#4F88F0 #F04F88 #88F04F

tetradic

#4F88F0 #F04FD8 #F0B74F #4FF067

square

#4F88F0 #F04FD8 #F0B74F #4FF067

split-complementary

#4F88F0 #F0674F #D8F04F

monochromatic

#0F4AB5 #1762EB #4F88F0 #87AEF5 #C0D4FA

Accessibility & contrast

On white

3.44

#4F88F0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.11

#4F88F0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F88F0

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F88F0	#FFFFFF	#000000	##000000
##4F88F0	1.00	3.44	6.11	6.11
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.11	21.00	1.00	1.00
##000000	6.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5692F4

Deuteranopia (green-blind)

#3A83EE

Tritanopia (blue-blind)

#00A0B0

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #4f88f0;
/* rgb */ color: rgb(79, 136, 240);
/* oklch */ color: oklch(63.9% 0.167 261.3);

Tailwind

colors: {
  custom: {
    50: '#91aaf5',
    500: '#4f88f0',
    950: '#000000',
  },
}

SCSS

$custom: #4f88f0;
$custom-light: #91aaf5;
$custom-dark: #000000;

JSON

{
  "hex": "#4f88f0",
  "rgb": {
    "r": 79,
    "g": 136,
    "b": 240
  },
  "hsl": {
    "h": 218.758,
    "s": 84.293,
    "l": 62.549
  },
  "oklch": {
    "l": 0.63923,
    "c": 0.1673,
    "h": 261.3
  },
  "luminance": 0.25562
}

Semantic roles & 50–950 ramp

primary

#4F88F0

secondary

#EBD6B0

accent

#9305E1

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #4F88F0

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

Preview Lab → · Contrast checker → · Palette generator →