#4E78E5#4E78E5

#4E78E5 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.9% C 0.172 H 265.6°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#4E78E5
RGB	rgb(78, 120, 229)
HSL	hsl(223, 74%, 60%)
HSV	hsv(223, 66%, 90%)
CMYK	cmyk(65.9%, 47.6%, 0%, 10.2%)
CIE-LAB	lab(52.63, 20.20, -59.74)
CIE-LCH	lch(52.63, 63.07, 288.68°)
OKLab	oklab(59.87% -0.0131 -0.1711)
OKLCH	oklch(59.87% 0.172 265.6)
XYZ	xyz(23.9963, 20.7075, 76.8459)
Luminance	0.2071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E78E5 #E5BB4E

analogous

#4EC4E5 #4E78E5 #6F4EE5

triadic

#4E78E5 #E54E78 #78E54E

tetradic

#4E78E5 #E54EC4 #E5BB4E #4EE56F

square

#4E78E5 #E54EC4 #E5BB4E #4EE56F

split-complementary

#4E78E5 #E56F4E #C4E54E

monochromatic

#183EA1 #1F52D6 #4E78E5 #83A1ED #B9C9F5

Accessibility & contrast

On white

4.08

#4E78E5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#4E78E5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E78E5

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E78E5	#FFFFFF	#000000	##000000
##4E78E5	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E85E9

Deuteranopia (green-blind)

#1B77E3

Tritanopia (blue-blind)

#0091A3

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4e78e5;
/* rgb */ color: rgb(78, 120, 229);
/* oklch */ color: oklch(59.9% 0.172 265.6);

Tailwind

colors: {
  custom: {
    50: '#8f9eee',
    500: '#4e78e5',
    950: '#000000',
  },
}

SCSS

$custom: #4e78e5;
$custom-light: #8f9eee;
$custom-dark: #000000;

JSON

{
  "hex": "#4e78e5",
  "rgb": {
    "r": 78,
    "g": 120,
    "b": 229
  },
  "hsl": {
    "h": 223.311,
    "s": 74.384,
    "l": 60.196
  },
  "oklch": {
    "l": 0.59873,
    "c": 0.17165,
    "h": 265.6
  },
  "luminance": 0.2071
}

Semantic roles & 50–950 ramp

primary

#4E78E5

secondary

#E4D4AA

accent

#9F0FD7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #4E78E5

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

Preview Lab → · Contrast checker → · Palette generator →