#4A78CB#4A78CB

#4A78CB is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.0% C 0.138 H 261.3°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4A78CB
RGB	rgb(74, 120, 203)
HSL	hsl(219, 55%, 54%)
HSV	hsv(219, 64%, 80%)
CMYK	cmyk(63.5%, 40.9%, 0%, 20.4%)
CIE-LAB	lab(50.92, 10.51, -47.79)
CIE-LCH	lch(50.92, 48.93, 282.40°)
OKLab	oklab(58.02% -0.0209 -0.1361)
OKLCH	oklch(58.02% 0.138 261.3)
XYZ	xyz(20.3162, 19.1987, 59.1234)
Luminance	0.1920 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A78CB #CB9D4A

analogous

#4AB8CB #4A78CB #5D4ACB

triadic

#4A78CB #CB4A78 #78CB4A

tetradic

#4A78CB #CB4AB8 #CB9D4A #4ACB5D

square

#4A78CB #CB4AB8 #CB9D4A #4ACB5D

split-complementary

#4A78CB #CB5D4A #B8CB4A

monochromatic

#234178 #305BA8 #4A78CB #7A9BD9 #A9BFE6

Accessibility & contrast

On white

4.34

#4A78CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#4A78CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4A78CB

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A78CB	#FFFFFF	#000000	##000000
##4A78CB	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5380CE

Deuteranopia (green-blind)

#4074C9

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4a78cb;
/* rgb */ color: rgb(74, 120, 203);
/* oklch */ color: oklch(58.0% 0.138 261.3);

Tailwind

colors: {
  custom: {
    50: '#889edb',
    500: '#4a78cb',
    950: '#000000',
  },
}

SCSS

$custom: #4a78cb;
$custom-light: #889edb;
$custom-dark: #000000;

JSON

{
  "hex": "#4a78cb",
  "rgb": {
    "r": 74,
    "g": 120,
    "b": 203
  },
  "hsl": {
    "h": 218.605,
    "s": 55.365,
    "l": 54.314
  },
  "oklch": {
    "l": 0.58017,
    "c": 0.13768,
    "h": 261.3
  },
  "luminance": 0.19201
}

Semantic roles & 50–950 ramp

primary

#4A78CB

secondary

#D4C09D

accent

#A949DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4A78CB

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

Preview Lab → · Contrast checker → · Palette generator →