#4E78E1#4E78E1

#4E78E1 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.6% C 0.166 H 265.3°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#4E78E1
RGB	rgb(78, 120, 225)
HSL	hsl(223, 71%, 59%)
HSV	hsv(223, 65%, 88%)
CMYK	cmyk(65.3%, 46.7%, 0%, 11.8%)
CIE-LAB	lab(52.38, 18.82, -57.89)
CIE-LCH	lch(52.38, 60.87, 288.01°)
OKLab	oklab(59.61% -0.0136 -0.1657)
OKLCH	oklch(59.61% 0.166 265.3)
XYZ	xyz(23.4442, 20.4867, 73.9384)
Luminance	0.2049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E78E1 #E1B74E

analogous

#4EC2E1 #4E78E1 #6E4EE1

triadic

#4E78E1 #E14E78 #78E14E

tetradic

#4E78E1 #E14EC2 #E1B74E #4EE16E

square

#4E78E1 #E14EC2 #E1B74E #4EE16E

split-complementary

#4E78E1 #E16E4E #C2E14E

monochromatic

#1A3F9A #2354CF #4E78E1 #82A0EA #B7C8F3

Accessibility & contrast

On white

4.12

#4E78E1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#4E78E1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4E78E1

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E78E1	#FFFFFF	#000000	##000000
##4E78E1	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4284E5

Deuteranopia (green-blind)

#2477DF

Tritanopia (blue-blind)

#0090A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #4e78e1;
/* rgb */ color: rgb(78, 120, 225);
/* oklch */ color: oklch(59.6% 0.166 265.3);

Tailwind

colors: {
  custom: {
    50: '#8e9eeb',
    500: '#4e78e1',
    950: '#000000',
  },
}

SCSS

$custom: #4e78e1;
$custom-light: #8e9eeb;
$custom-dark: #000000;

JSON

{
  "hex": "#4e78e1",
  "rgb": {
    "r": 78,
    "g": 120,
    "b": 225
  },
  "hsl": {
    "h": 222.857,
    "s": 71.014,
    "l": 59.412
  },
  "oklch": {
    "l": 0.59607,
    "c": 0.16626,
    "h": 265.3
  },
  "luminance": 0.20489
}

Semantic roles & 50–950 ramp

primary

#4E78E1

secondary

#E2D2A9

accent

#BA3AEE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #4E78E1

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

Preview Lab → · Contrast checker → · Palette generator →