#4C78CA#4C78CA

#4C78CA is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.1% C 0.136 H 261.8°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#4C78CA
RGB	rgb(76, 120, 202)
HSL	hsl(219, 54%, 55%)
HSV	hsv(219, 62%, 79%)
CMYK	cmyk(62.4%, 40.6%, 0%, 20.8%)
CIE-LAB	lab(50.96, 10.53, -47.15)
CIE-LCH	lch(50.96, 48.31, 282.59°)
OKLab	oklab(58.06% -0.0194 -0.1342)
OKLCH	oklch(58.06% 0.136 261.8)
XYZ	xyz(20.3539, 19.2319, 58.5052)
Luminance	0.1923 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C78CA #CA9E4C

analogous

#4CB7CA #4C78CA #5F4CCA

triadic

#4C78CA #CA4C78 #78CA4C

tetradic

#4C78CA #CA4CB7 #CA9E4C #4CCA5F

square

#4C78CA #CA4CB7 #CA9E4C #4CCA5F

split-complementary

#4C78CA #CA5F4C #B7CA4C

monochromatic

#244178 #325BA7 #4C78CA #7B9CD8 #AABFE6

Accessibility & contrast

On white

4.33

#4C78CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#4C78CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C78CA

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C78CA	#FFFFFF	#000000	##000000
##4C78CA	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5480CD

Deuteranopia (green-blind)

#4174C8

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4c78ca;
/* rgb */ color: rgb(76, 120, 202);
/* oklch */ color: oklch(58.1% 0.136 261.8);

Tailwind

colors: {
  custom: {
    50: '#899eda',
    500: '#4c78ca',
    950: '#000000',
  },
}

SCSS

$custom: #4c78ca;
$custom-light: #899eda;
$custom-dark: #000000;

JSON

{
  "hex": "#4c78ca",
  "rgb": {
    "r": 76,
    "g": 120,
    "b": 202
  },
  "hsl": {
    "h": 219.048,
    "s": 54.31,
    "l": 54.51
  },
  "oklch": {
    "l": 0.58055,
    "c": 0.13558,
    "h": 261.8
  },
  "luminance": 0.19234
}

Semantic roles & 50–950 ramp

primary

#4C78CA

secondary

#D4C19E

accent

#AA4ADE

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #4C78CA

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

Preview Lab → · Contrast checker → · Palette generator →