#4C78E9#4C78E9

#4C78E9 is a mid, vivid blue. Relative luminance 0.209; OKLCH L 60.0% C 0.178 H 265.4°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#4C78E9
RGB	rgb(76, 120, 233)
HSL	hsl(223, 78%, 61%)
HSV	hsv(223, 67%, 91%)
CMYK	cmyk(67.4%, 48.5%, 0%, 8.6%)
CIE-LAB	lab(52.79, 21.29, -61.74)
CIE-LCH	lch(52.79, 65.30, 289.02°)
OKLab	oklab(60.05% -0.0143 -0.177)
OKLCH	oklch(60.05% 0.178 265.4)
XYZ	xyz(24.3998, 20.8502, 79.8136)
Luminance	0.2085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C78E9 #E9BD4C

analogous

#4CC6E9 #4C78E9 #6F4CE9

triadic

#4C78E9 #E94C78 #78E94C

tetradic

#4C78E9 #E94CC6 #E9BD4C #4CE96F

square

#4C78E9 #E94CC6 #E9BD4C #4CE96F

split-complementary

#4C78E9 #E96F4C #C6E94C

monochromatic

#143DA6 #1B51DD #4C78E9 #83A1F0 #B9CAF6

Accessibility & contrast

On white

4.06

#4C78E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#4C78E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C78E9

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C78E9	#FFFFFF	#000000	##000000
##4C78E9	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A86ED

Deuteranopia (green-blind)

#0877E7

Tritanopia (blue-blind)

#0092A5

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4c78e9;
/* rgb */ color: rgb(76, 120, 233);
/* oklch */ color: oklch(60.0% 0.178 265.4);

Tailwind

colors: {
  custom: {
    50: '#8f9ef1',
    500: '#4c78e9',
    950: '#000000',
  },
}

SCSS

$custom: #4c78e9;
$custom-light: #8f9ef1;
$custom-dark: #000000;

JSON

{
  "hex": "#4c78e9",
  "rgb": {
    "r": 76,
    "g": 120,
    "b": 233
  },
  "hsl": {
    "h": 223.185,
    "s": 78.109,
    "l": 60.588
  },
  "oklch": {
    "l": 0.60048,
    "c": 0.17761,
    "h": 265.4
  },
  "luminance": 0.20853
}

Semantic roles & 50–950 ramp

primary

#4C78E9

secondary

#E6D6AB

accent

#A00BDA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4C78E9

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

Preview Lab → · Contrast checker → · Palette generator →