#4B78CD#4B78CD

#4B78CD is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.2% C 0.140 H 261.9°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#4B78CD
RGB	rgb(75, 120, 205)
HSL	hsl(219, 57%, 55%)
HSV	hsv(219, 63%, 80%)
CMYK	cmyk(63.4%, 41.5%, 0%, 19.6%)
CIE-LAB	lab(51.08, 11.38, -48.67)
CIE-LCH	lch(51.08, 49.99, 283.16°)
OKLab	oklab(58.19% -0.0196 -0.1387)
OKLCH	oklch(58.19% 0.14 261.9)
XYZ	xyz(20.6337, 19.3347, 60.3904)
Luminance	0.1934 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B78CD #CDA04B

analogous

#4BB9CD #4B78CD #5F4BCD

triadic

#4B78CD #CD4B78 #78CD4B

tetradic

#4B78CD #CD4BB9 #CDA04B #4BCD5F

square

#4B78CD #CD4BB9 #CDA04B #4BCD5F

split-complementary

#4B78CD #CD5F4B #B9CD4B

monochromatic

#22417B #305AAB #4B78CD #7B9CDA #ABC0E8

Accessibility & contrast

On white

4.31

#4B78CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#4B78CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B78CD

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B78CD	#FFFFFF	#000000	##000000
##4B78CD	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)

#5280D0

Deuteranopia (green-blind)

#3E74CB

Tritanopia (blue-blind)

#008B98

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4b78cd;
/* rgb */ color: rgb(75, 120, 205);
/* oklch */ color: oklch(58.2% 0.140 261.9);

Tailwind

colors: {
  custom: {
    50: '#899edd',
    500: '#4b78cd',
    950: '#000000',
  },
}

SCSS

$custom: #4b78cd;
$custom-light: #899edd;
$custom-dark: #000000;

JSON

{
  "hex": "#4b78cd",
  "rgb": {
    "r": 75,
    "g": 120,
    "b": 205
  },
  "hsl": {
    "h": 219.231,
    "s": 56.522,
    "l": 54.902
  },
  "oklch": {
    "l": 0.58188,
    "c": 0.14005,
    "h": 261.9
  },
  "luminance": 0.19337
}

Semantic roles & 50–950 ramp

primary

#4B78CD

secondary

#D5C29F

accent

#AB48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #4B78CD

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

Preview Lab → · Contrast checker → · Palette generator →