#4C78DD#4C78DD

#4C78DD is a mid, vivid blue. Relative luminance 0.202; OKLCH L 59.2% C 0.161 H 264.3°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#4C78DD
RGB	rgb(76, 120, 221)
HSL	hsl(222, 68%, 58%)
HSV	hsv(222, 66%, 87%)
CMYK	cmyk(65.6%, 45.7%, 0%, 13.3%)
CIE-LAB	lab(52.05, 17.10, -56.18)
CIE-LCH	lch(52.05, 58.73, 286.93°)
OKLab	oklab(59.25% -0.0159 -0.1607)
OKLCH	oklch(59.25% 0.161 264.3)
XYZ	xyz(22.7435, 20.1877, 71.0906)
Luminance	0.2019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C78DD #DDB14C

analogous

#4CC0DD #4C78DD #684CDD

triadic

#4C78DD #DD4C78 #78DD4C

tetradic

#4C78DD #DD4CC0 #DDB14C #4CDD68

square

#4C78DD #DD4CC0 #DDB14C #4CDD68

split-complementary

#4C78DD #DD684C #C0DD4C

monochromatic

#1C4093 #2656C6 #4C78DD #7F9FE7 #B3C6F1

Accessibility & contrast

On white

4.17

#4C78DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#4C78DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C78DD

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C78DD	#FFFFFF	#000000	##000000
##4C78DD	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4683E1

Deuteranopia (green-blind)

#2A76DB

Tritanopia (blue-blind)

#008FA0

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4c78dd;
/* rgb */ color: rgb(76, 120, 221);
/* oklch */ color: oklch(59.2% 0.161 264.3);

Tailwind

colors: {
  custom: {
    50: '#8c9ee8',
    500: '#4c78dd',
    950: '#000000',
  },
}

SCSS

$custom: #4c78dd;
$custom-light: #8c9ee8;
$custom-dark: #000000;

JSON

{
  "hex": "#4c78dd",
  "rgb": {
    "r": 76,
    "g": 120,
    "b": 221
  },
  "hsl": {
    "h": 221.793,
    "s": 68.075,
    "l": 58.235
  },
  "oklch": {
    "l": 0.59248,
    "c": 0.16149,
    "h": 264.3
  },
  "luminance": 0.2019
}

Semantic roles & 50–950 ramp

primary

#4C78DD

secondary

#DFCEA6

accent

#B63DEB

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4C78DD

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

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