#4E78CB#4E78CB

#4E78CB is a mid, vivid blue. Relative luminance 0.194; OKLCH L 58.2% C 0.136 H 262.7°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#4E78CB
RGB	rgb(78, 120, 203)
HSL	hsl(220, 55%, 55%)
HSV	hsv(220, 62%, 80%)
CMYK	cmyk(61.6%, 40.9%, 0%, 20.4%)
CIE-LAB	lab(51.11, 11.24, -47.48)
CIE-LCH	lch(51.11, 48.79, 283.32°)
OKLab	oklab(58.22% -0.0174 -0.1351)
OKLCH	oklch(58.22% 0.136 262.7)
XYZ	xyz(20.6341, 19.3626, 59.1383)
Luminance	0.1936 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E78CB #CBA14E

analogous

#4EB6CB #4E78CB #624ECB

triadic

#4E78CB #CB4E78 #78CB4E

tetradic

#4E78CB #CB4EB6 #CBA14E #4ECB62

square

#4E78CB #CB4EB6 #CBA14E #4ECB62

split-complementary

#4E78CB #CB624E #B6CB4E

monochromatic

#24417B #325AAA #4E78CB #7D9CD9 #ADC0E7

Accessibility & contrast

On white

4.31

#4E78CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#4E78CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E78CB

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E78CB	#FFFFFF	#000000	##000000
##4E78CB	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5380CE

Deuteranopia (green-blind)

#4174C9

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4e78cb;
/* rgb */ color: rgb(78, 120, 203);
/* oklch */ color: oklch(58.2% 0.136 262.7);

Tailwind

colors: {
  custom: {
    50: '#8a9edb',
    500: '#4e78cb',
    950: '#000000',
  },
}

SCSS

$custom: #4e78cb;
$custom-light: #8a9edb;
$custom-dark: #000000;

JSON

{
  "hex": "#4e78cb",
  "rgb": {
    "r": 78,
    "g": 120,
    "b": 203
  },
  "hsl": {
    "h": 219.84,
    "s": 54.585,
    "l": 55.098
  },
  "oklch": {
    "l": 0.58216,
    "c": 0.13622,
    "h": 262.7
  },
  "luminance": 0.19364
}

Semantic roles & 50–950 ramp

primary

#4E78CB

secondary

#D5C3A0

accent

#AC4ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4E78CB

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

Preview Lab → · Contrast checker → · Palette generator →