#4578EC#4578EC
#4578EC is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.9% C 0.184 H 263.9°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).
Color values
| HEX | #4578EC |
|---|---|
| RGB | rgb(69, 120, 236) |
| HSL | hsl(222, 81%, 60%) |
| HSV | hsv(222, 71%, 93%) |
| CMYK | cmyk(70.8%, 49.2%, 0%, 7.5%) |
| CIE-LAB | lab(52.68, 21.35, -63.60) |
| CIE-LCH | lch(52.68, 67.09, 288.55°) |
| OKLab | oklab(59.94% -0.0196 -0.1827) |
| OKLCH | oklch(59.94% 0.184 263.9) |
| XYZ | xyz(24.3057, 20.7517, 82.0651) |
| Luminance | 0.2075 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Lightish Blue
#3D7AFD
ΔE00 1.96
Clear Blue
#247AFD
ΔE00 2.63
Deep Sky Blue
#0D75F8
ΔE00 2.95
Dodger Blue
#3E82FC
ΔE00 3.94
Cornflower Blue
#5170D7
ΔE00 4.13
Cerulean Blue
#056EEE
ΔE00 4.44
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4578EC #ECB945
analogous
#45CBEC #4578EC #6645EC
triadic
#4578EC #EC4578 #78EC45
tetradic
#4578EC #EC45CB #ECB945 #45EC66
square
#4578EC #EC45CB #ECB945 #45EC66
split-complementary
#4578EC #EC6645 #CBEC45
monochromatic
#113EA6 #1753DD #4578EC #7DA0F2 #B4C9F7
Accessibility & contrast
On white
4.08
#4578EC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.15
#4578EC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4578EC
5.15:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4578EC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4578EC | 1.00 | 4.08 | 5.15 | 5.15 |
| #FFFFFF | 4.08 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.15 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.15 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3486F0
Deuteranopia (green-blind)
#0076EA
Tritanopia (blue-blind)
#0094A7
Achromatopsia (no color)
#7E7E7E
Design tokens & code
CSS
--color: #4578ec; /* rgb */ color: rgb(69, 120, 236); /* oklch */ color: oklch(59.9% 0.184 263.9);
Tailwind
colors: {
custom: {
50: '#8c9ef3',
500: '#4578ec',
950: '#000000',
},
}SCSS
$custom: #4578ec; $custom-light: #8c9ef3; $custom-dark: #000000;
JSON
{
"hex": "#4578ec",
"rgb": {
"r": 69,
"g": 120,
"b": 236
},
"hsl": {
"h": 221.677,
"s": 81.463,
"l": 59.804
},
"oklch": {
"l": 0.59944,
"c": 0.18371,
"h": 263.9
},
"luminance": 0.20754
}Semantic roles & 50–950 ramp
primary
#4578EC
secondary
#E7D3A6
accent
#BB30F8
background
#F9F9FE
surface
#F2F2FD
border
#CCCCD5
text
#0E0E17
muted
#7E7E85