#4B78E8#4B78E8

#4B78E8 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.9% C 0.177 H 265.0°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#4B78E8
RGB	rgb(75, 120, 232)
HSL	hsl(223, 77%, 60%)
HSV	hsv(223, 68%, 91%)
CMYK	cmyk(67.7%, 48.3%, 0%, 9%)
CIE-LAB	lab(52.68, 20.79, -61.35)
CIE-LCH	lch(52.68, 64.78, 288.72°)
OKLab	oklab(59.93% -0.0152 -0.1759)
OKLCH	oklch(59.93% 0.177 265)
XYZ	xyz(24.1785, 20.7526, 79.0597)
Luminance	0.2076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B78E8 #E8BB4B

analogous

#4BC6E8 #4B78E8 #6D4BE8

triadic

#4B78E8 #E84B78 #78E84B

tetradic

#4B78E8 #E84BC6 #E8BB4B #4BE86D

square

#4B78E8 #E84BC6 #E8BB4B #4BE86D

split-complementary

#4B78E8 #E86D4B #C6E84B

monochromatic

#153EA4 #1C52DA #4B78E8 #81A1EF #B8C9F6

Accessibility & contrast

On white

4.08

#4B78E8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#4B78E8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B78E8

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B78E8	#FFFFFF	#000000	##000000
##4B78E8	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B85EC

Deuteranopia (green-blind)

#0C77E6

Tritanopia (blue-blind)

#0092A5

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4b78e8;
/* rgb */ color: rgb(75, 120, 232);
/* oklch */ color: oklch(59.9% 0.177 265.0);

Tailwind

colors: {
  custom: {
    50: '#8e9ef0',
    500: '#4b78e8',
    950: '#000000',
  },
}

SCSS

$custom: #4b78e8;
$custom-light: #8e9ef0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b78e8",
  "rgb": {
    "r": 75,
    "g": 120,
    "b": 232
  },
  "hsl": {
    "h": 222.803,
    "s": 77.34,
    "l": 60.196
  },
  "oklch": {
    "l": 0.59934,
    "c": 0.17659,
    "h": 265
  },
  "luminance": 0.20755
}

Semantic roles & 50–950 ramp

primary

#4B78E8

secondary

#E6D4A9

accent

#9F0CDA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4B78E8

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

Preview Lab → · Contrast checker → · Palette generator →