#4F78F4#4F78F4

#4F78F4 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 61.0% C 0.191 H 266.9°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4F78F4
RGB	rgb(79, 120, 244)
HSL	hsl(225, 88%, 63%)
HSV	hsv(225, 68%, 96%)
CMYK	cmyk(67.6%, 50.8%, 0%, 4.3%)
CIE-LAB	lab(53.63, 25.56, -66.51)
CIE-LCH	lch(53.63, 71.25, 291.02°)
OKLab	oklab(60.95% -0.0105 -0.191)
OKLCH	oklch(60.95% 0.191 266.9)
XYZ	xyz(26.2644, 21.6243, 88.3602)
Luminance	0.2163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78F4 #F4CB4F

analogous

#4FCAF4 #4F78F4 #784FF4

triadic

#4F78F4 #F44F78 #78F44F

tetradic

#4F78F4 #F44FCA #F4CB4F #4FF478

square

#4F78F4 #F44FCA #F4CB4F #4FF478

split-complementary

#4F78F4 #F4784F #CAF44F

monochromatic

#0C38BD #154CF0 #4F78F4 #89A4F8 #C2D0FB

Accessibility & contrast

On white

3.94

#4F78F4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#4F78F4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78F4

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78F4	#FFFFFF	#000000	##000000
##4F78F4	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B88F8

Deuteranopia (green-blind)

#0079F1

Tritanopia (blue-blind)

#0095AB

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4f78f4;
/* rgb */ color: rgb(79, 120, 244);
/* oklch */ color: oklch(61.0% 0.191 266.9);

Tailwind

colors: {
  custom: {
    50: '#929ef8',
    500: '#4f78f4',
    950: '#000000',
  },
}

SCSS

$custom: #4f78f4;
$custom-light: #929ef8;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78f4",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 244
  },
  "hsl": {
    "h": 225.091,
    "s": 88.235,
    "l": 63.333
  },
  "oklch": {
    "l": 0.6095,
    "c": 0.19131,
    "h": 266.9
  },
  "luminance": 0.21627
}

Semantic roles & 50–950 ramp

primary

#4F78F4

secondary

#EDDEB2

accent

#AC01E5

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4F78F4

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

Preview Lab → · Contrast checker → · Palette generator →