#4E78E9#4E78E9

#4E78E9 is a mid, vivid blue. Relative luminance 0.209; OKLCH L 60.1% C 0.177 H 265.9°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#4E78E9
RGB	rgb(78, 120, 233)
HSL	hsl(224, 78%, 61%)
HSV	hsv(224, 67%, 91%)
CMYK	cmyk(66.5%, 48.5%, 0%, 8.6%)
CIE-LAB	lab(52.88, 21.59, -61.58)
CIE-LCH	lch(52.88, 65.26, 289.32°)
OKLab	oklab(60.14% -0.0126 -0.1766)
OKLCH	oklch(60.14% 0.177 265.9)
XYZ	xyz(24.5612, 20.9335, 79.8212)
Luminance	0.2094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E78E9 #E9BF4E

analogous

#4EC5E9 #4E78E9 #714EE9

triadic

#4E78E9 #E94E78 #78E94E

tetradic

#4E78E9 #E94EC5 #E9BF4E #4EE971

square

#4E78E9 #E94EC5 #E9BF4E #4EE971

split-complementary

#4E78E9 #E9714E #C5E94E

monochromatic

#153DA8 #1C50DE #4E78E9 #84A2F0 #BBCBF7

Accessibility & contrast

On white

4.05

#4E78E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#4E78E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E78E9

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E78E9	#FFFFFF	#000000	##000000
##4E78E9	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A86ED

Deuteranopia (green-blind)

#0D78E7

Tritanopia (blue-blind)

#0092A5

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4e78e9;
/* rgb */ color: rgb(78, 120, 233);
/* oklch */ color: oklch(60.1% 0.177 265.9);

Tailwind

colors: {
  custom: {
    50: '#8f9ef1',
    500: '#4e78e9',
    950: '#000000',
  },
}

SCSS

$custom: #4e78e9;
$custom-light: #8f9ef1;
$custom-dark: #000000;

JSON

{
  "hex": "#4e78e9",
  "rgb": {
    "r": 78,
    "g": 120,
    "b": 233
  },
  "hsl": {
    "h": 223.742,
    "s": 77.889,
    "l": 60.98
  },
  "oklch": {
    "l": 0.60143,
    "c": 0.17701,
    "h": 265.9
  },
  "luminance": 0.20936
}

Semantic roles & 50–950 ramp

primary

#4E78E9

secondary

#E7D7AC

accent

#A20BDA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4E78E9

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

Preview Lab → · Contrast checker → · Palette generator →