#4C78EF#4C78EF

#4C78EF is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.5% C 0.186 H 265.8°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#4C78EF
RGB	rgb(76, 120, 239)
HSL	hsl(224, 84%, 62%)
HSV	hsv(224, 68%, 94%)
CMYK	cmyk(68.2%, 49.8%, 0%, 6.3%)
CIE-LAB	lab(53.17, 23.38, -64.47)
CIE-LCH	lch(53.17, 68.58, 289.94°)
OKLab	oklab(60.46% -0.0136 -0.1851)
OKLCH	oklch(60.46% 0.186 265.8)
XYZ	xyz(25.2715, 21.1989, 84.4046)
Luminance	0.2120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C78EF #EFC34C

analogous

#4CC9EF #4C78EF #724CEF

triadic

#4C78EF #EF4C78 #78EF4C

tetradic

#4C78EF #EF4CC9 #EFC34C #4CEF72

square

#4C78EF #EF4CC9 #EFC34C #4CEF72

split-complementary

#4C78EF #EF724C #C9EF4C

monochromatic

#103BB1 #154EE9 #4C78EF #84A2F4 #BCCDF9

Accessibility & contrast

On white

4.01

#4C78EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#4C78EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C78EF

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C78EF	#FFFFFF	#000000	##000000
##4C78EF	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3287F3

Deuteranopia (green-blind)

#0078ED

Tritanopia (blue-blind)

#0094A8

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4c78ef;
/* rgb */ color: rgb(76, 120, 239);
/* oklch */ color: oklch(60.5% 0.186 265.8);

Tailwind

colors: {
  custom: {
    50: '#909ef5',
    500: '#4c78ef',
    950: '#000000',
  },
}

SCSS

$custom: #4c78ef;
$custom-light: #909ef5;
$custom-dark: #000000;

JSON

{
  "hex": "#4c78ef",
  "rgb": {
    "r": 76,
    "g": 120,
    "b": 239
  },
  "hsl": {
    "h": 223.804,
    "s": 83.59,
    "l": 61.765
  },
  "oklch": {
    "l": 0.6046,
    "c": 0.18559,
    "h": 265.8
  },
  "luminance": 0.21201
}

Semantic roles & 50–950 ramp

primary

#4C78EF

secondary

#EAD9AD

accent

#A505E0

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4C78EF

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

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