#4F78F2#4F78F2

#4F78F2 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.8% C 0.189 H 266.7°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#4F78F2
RGB	rgb(79, 120, 242)
HSL	hsl(225, 86%, 63%)
HSV	hsv(225, 67%, 95%)
CMYK	cmyk(67.4%, 50.4%, 0%, 5.1%)
CIE-LAB	lab(53.50, 24.87, -65.60)
CIE-LCH	lch(53.50, 70.16, 290.76°)
OKLab	oklab(60.81% -0.0107 -0.1884)
OKLCH	oklch(60.81% 0.189 266.7)
XYZ	xyz(25.9624, 21.5035, 86.7695)
Luminance	0.2151 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78F2 #F2C94F

analogous

#4FC9F2 #4F78F2 #774FF2

triadic

#4F78F2 #F24F78 #78F24F

tetradic

#4F78F2 #F24FC9 #F2C94F #4FF277

square

#4F78F2 #F24FC9 #F2C94F #4FF277

split-complementary

#4F78F2 #F2774F #C9F24F

monochromatic

#0E39B9 #164CEE #4F78F2 #88A4F6 #C1CFFA

Accessibility & contrast

On white

3.96

#4F78F2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#4F78F2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78F2

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78F2	#FFFFFF	#000000	##000000
##4F78F2	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E88F6

Deuteranopia (green-blind)

#0079F0

Tritanopia (blue-blind)

#0095AA

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4f78f2;
/* rgb */ color: rgb(79, 120, 242);
/* oklch */ color: oklch(60.8% 0.189 266.7);

Tailwind

colors: {
  custom: {
    50: '#919ef7',
    500: '#4f78f2',
    950: '#000000',
  },
}

SCSS

$custom: #4f78f2;
$custom-light: #919ef7;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78f2",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 242
  },
  "hsl": {
    "h": 224.908,
    "s": 86.243,
    "l": 62.941
  },
  "oklch": {
    "l": 0.6081,
    "c": 0.18867,
    "h": 266.7
  },
  "luminance": 0.21506
}

Semantic roles & 50–950 ramp

primary

#4F78F2

secondary

#ECDDB1

accent

#AA03E3

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4F78F2

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

Preview Lab → · Contrast checker → · Palette generator →