#4F78E3#4F78E3

#4F78E3 is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.8% C 0.169 H 265.8°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#4F78E3
RGB	rgb(79, 120, 227)
HSL	hsl(223, 73%, 60%)
HSV	hsv(223, 65%, 89%)
CMYK	cmyk(65.2%, 47.1%, 0%, 11%)
CIE-LAB	lab(52.55, 19.67, -58.74)
CIE-LCH	lch(52.55, 61.95, 288.51°)
OKLab	oklab(59.79% -0.0125 -0.1682)
OKLCH	oklch(59.79% 0.169 265.8)
XYZ	xyz(23.8012, 20.6390, 75.3876)
Luminance	0.2064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F78E3 #E3BA4F

analogous

#4FC2E3 #4F78E3 #704FE3

triadic

#4F78E3 #E34F78 #78E34F

tetradic

#4F78E3 #E34FC2 #E3BA4F #4FE370

square

#4F78E3 #E34FC2 #E3BA4F #4FE370

split-complementary

#4F78E3 #E3704F #C2E34F

monochromatic

#193E9E #2253D3 #4F78E3 #84A1EB #B9C9F4

Accessibility & contrast

On white

4.10

#4F78E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#4F78E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F78E3

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F78E3	#FFFFFF	#000000	##000000
##4F78E3	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4185E7

Deuteranopia (green-blind)

#2177E1

Tritanopia (blue-blind)

#0091A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #4f78e3;
/* rgb */ color: rgb(79, 120, 227);
/* oklch */ color: oklch(59.8% 0.169 265.8);

Tailwind

colors: {
  custom: {
    50: '#8f9eec',
    500: '#4f78e3',
    950: '#000000',
  },
}

SCSS

$custom: #4f78e3;
$custom-light: #8f9eec;
$custom-dark: #000000;

JSON

{
  "hex": "#4f78e3",
  "rgb": {
    "r": 79,
    "g": 120,
    "b": 227
  },
  "hsl": {
    "h": 223.378,
    "s": 72.549,
    "l": 60
  },
  "oklch": {
    "l": 0.59789,
    "c": 0.16864,
    "h": 265.8
  },
  "luminance": 0.20641
}

Semantic roles & 50–950 ramp

primary

#4F78E3

secondary

#E3D4AA

accent

#BD39EF

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #4F78E3

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

Preview Lab → · Contrast checker → · Palette generator →