#4C78CF#4C78CF

#4C78CF is a mid, vivid blue. Relative luminance 0.195; OKLCH L 58.4% C 0.142 H 262.6°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#4C78CF
RGB	rgb(76, 120, 207)
HSL	hsl(220, 58%, 55%)
HSV	hsv(220, 63%, 81%)
CMYK	cmyk(63.3%, 42%, 0%, 18.8%)
CIE-LAB	lab(51.24, 12.25, -49.56)
CIE-LCH	lch(51.24, 51.05, 283.88°)
OKLab	oklab(58.36% -0.0184 -0.1412)
OKLCH	oklch(58.36% 0.142 262.6)
XYZ	xyz(20.9555, 19.4725, 61.6736)
Luminance	0.1947 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C78CF #CFA34C

analogous

#4CBACF #4C78CF #614CCF

triadic

#4C78CF #CF4C78 #78CF4C

tetradic

#4C78CF #CF4CBA #CFA34C #4CCF61

square

#4C78CF #CF4CBA #CFA34C #4CCF61

split-complementary

#4C78CF #CF614C #BACF4C

monochromatic

#22417F #2F5AAF #4C78CF #7C9CDC #ADC1E9

Accessibility & contrast

On white

4.29

#4C78CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#4C78CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C78CF

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C78CF	#FFFFFF	#000000	##000000
##4C78CF	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5081D2

Deuteranopia (green-blind)

#3D74CD

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4c78cf;
/* rgb */ color: rgb(76, 120, 207);
/* oklch */ color: oklch(58.4% 0.142 262.6);

Tailwind

colors: {
  custom: {
    50: '#8a9ede',
    500: '#4c78cf',
    950: '#000000',
  },
}

SCSS

$custom: #4c78cf;
$custom-light: #8a9ede;
$custom-dark: #000000;

JSON

{
  "hex": "#4c78cf",
  "rgb": {
    "r": 76,
    "g": 120,
    "b": 207
  },
  "hsl": {
    "h": 219.847,
    "s": 57.709,
    "l": 55.49
  },
  "oklch": {
    "l": 0.5836,
    "c": 0.14243,
    "h": 262.6
  },
  "luminance": 0.19474
}

Semantic roles & 50–950 ramp

primary

#4C78CF

secondary

#D7C4A0

accent

#AD47E1

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4C78CF

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

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