#4C78D8#4C78D8
#4C78D8 is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.9% C 0.155 H 263.8°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #4C78D8 |
|---|---|
| RGB | rgb(76, 120, 216) |
| HSL | hsl(221, 64%, 57%) |
| HSV | hsv(221, 65%, 85%) |
| CMYK | cmyk(64.8%, 44.4%, 0%, 15.3%) |
| CIE-LAB | lab(51.75, 15.36, -53.83) |
| CIE-LCH | lch(51.75, 55.98, 285.93°) |
| OKLab | oklab(58.93% -0.0167 -0.1538) |
| OKLCH | oklch(58.93% 0.155 263.8) |
| XYZ | xyz(22.0873, 19.9252, 67.6344) |
| Luminance | 0.1993 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 3.29
Deep Sky Blue
#0D75F8
ΔE00 4.06
Lightish Blue
#3D7AFD
ΔE00 4.07
Clear Blue
#247AFD
ΔE00 4.25
Cerulean Blue
#056EEE
ΔE00 4.72
Windows Blue
#3778BF
ΔE00 5.25
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4C78D8 #D8AC4C
analogous
#4CBED8 #4C78D8 #664CD8
triadic
#4C78D8 #D84C78 #78D84C
tetradic
#4C78D8 #D84CBE #D8AC4C #4CD866
square
#4C78D8 #D84CBE #D8AC4C #4CD866
split-complementary
#4C78D8 #D8664C #BED84C
monochromatic
#1E418B #2958BE #4C78D8 #7E9EE3 #B1C4EE
Accessibility & contrast
On white
4.21
#4C78D8 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.99
#4C78D8 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4C78D8
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4C78D8 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4C78D8 | 1.00 | 4.21 | 4.99 | 4.99 |
| #FFFFFF | 4.21 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4A82DC
Deuteranopia (green-blind)
#3275D6
Tritanopia (blue-blind)
#008E9D
Achromatopsia (no color)
#7B7B7B
Design tokens & code
CSS
--color: #4c78d8; /* rgb */ color: rgb(76, 120, 216); /* oklch */ color: oklch(58.9% 0.155 263.8);
Tailwind
colors: {
custom: {
50: '#8c9ee4',
500: '#4c78d8',
950: '#000000',
},
}SCSS
$custom: #4c78d8; $custom-light: #8c9ee4; $custom-dark: #000000;
JSON
{
"hex": "#4c78d8",
"rgb": {
"r": 76,
"g": 120,
"b": 216
},
"hsl": {
"h": 221.143,
"s": 64.22,
"l": 57.255
},
"oklch": {
"l": 0.58925,
"c": 0.15471,
"h": 263.8
},
"luminance": 0.19927
}Semantic roles & 50–950 ramp
primary
#4C78D8
secondary
#DCCAA4
accent
#B341E7
background
#F9F9FE
surface
#F1F2FC
border
#CBCCD5
text
#0D0E16
muted
#7E7E84