#4B78F0#4B78F0

#4B78F0 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.5% C 0.187 H 265.6°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#4B78F0
RGB	rgb(75, 120, 240)
HSL	hsl(224, 85%, 62%)
HSV	hsv(224, 69%, 94%)
CMYK	cmyk(68.7%, 50%, 0%, 5.9%)
CIE-LAB	lab(53.19, 23.59, -65.00)
CIE-LCH	lch(53.19, 69.15, 289.95°)
OKLab	oklab(60.48% -0.0143 -0.1867)
OKLCH	oklch(60.48% 0.187 265.6)
XYZ	xyz(25.3408, 21.2175, 85.1811)
Luminance	0.2122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B78F0 #F0C34B

analogous

#4BCBF0 #4B78F0 #714BF0

triadic

#4B78F0 #F04B78 #78F04B

tetradic

#4B78F0 #F04BCB #F0C34B #4BF071

square

#4B78F0 #F04BCB #F0C34B #4BF071

split-complementary

#4B78F0 #F0714B #CBF04B

monochromatic

#0F3BB2 #144EEA #4B78F0 #83A2F5 #BCCDF9

Accessibility & contrast

On white

4.00

#4B78F0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#4B78F0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B78F0

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B78F0	#FFFFFF	#000000	##000000
##4B78F0	1.00	4.00	5.24	5.24
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3087F4

Deuteranopia (green-blind)

#0078EE

Tritanopia (blue-blind)

#0094A9

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4b78f0;
/* rgb */ color: rgb(75, 120, 240);
/* oklch */ color: oklch(60.5% 0.187 265.6);

Tailwind

colors: {
  custom: {
    50: '#8f9ef6',
    500: '#4b78f0',
    950: '#000000',
  },
}

SCSS

$custom: #4b78f0;
$custom-light: #8f9ef6;
$custom-dark: #000000;

JSON

{
  "hex": "#4b78f0",
  "rgb": {
    "r": 75,
    "g": 120,
    "b": 240
  },
  "hsl": {
    "h": 223.636,
    "s": 84.615,
    "l": 61.765
  },
  "oklch": {
    "l": 0.60484,
    "c": 0.18721,
    "h": 265.6
  },
  "luminance": 0.2122
}

Semantic roles & 50–950 ramp

primary

#4B78F0

secondary

#EAD9AD

accent

#A504E1

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4B78F0

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

Preview Lab → · Contrast checker → · Palette generator →