#4579D9#4579D9
#4579D9 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.9% C 0.157 H 261.5°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).
Color values
| HEX | #4579D9 |
|---|---|
| RGB | rgb(69, 121, 217) |
| HSL | hsl(219, 66%, 56%) |
| HSV | hsv(219, 68%, 85%) |
| CMYK | cmyk(68.2%, 44.2%, 0%, 14.9%) |
| CIE-LAB | lab(51.78, 13.97, -54.37) |
| CIE-LCH | lch(51.78, 56.14, 284.41°) |
| OKLab | oklab(58.88% -0.0233 -0.1555) |
| OKLCH | oklch(58.88% 0.157 261.5) |
| XYZ | xyz(21.8115, 19.9475, 68.3329) |
| Luminance | 0.1995 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Deep Sky Blue
#0D75F8
ΔE00 3.45
Clear Blue
#247AFD
ΔE00 3.68
Lightish Blue
#3D7AFD
ΔE00 4.00
Cornflower Blue
#5170D7
ΔE00 4.26
Cerulean Blue
#056EEE
ΔE00 4.42
Windows Blue
#3778BF
ΔE00 4.43
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4579D9 #D9A545
analogous
#45C3D9 #4579D9 #5B45D9
triadic
#4579D9 #D94579 #79D945
tetradic
#4579D9 #D945C3 #D9A545 #45D95B
square
#4579D9 #D945C3 #D9A545 #45D95B
split-complementary
#4579D9 #D95B45 #C3D945
monochromatic
#1C4288 #265ABB #4579D9 #789EE3 #ABC2EE
Accessibility & contrast
On white
4.21
#4579D9 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.99
#4579D9 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4579D9
4.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4579D9 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4579D9 | 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)
#4A83DD
Deuteranopia (green-blind)
#2F75D7
Tritanopia (blue-blind)
#008F9E
Achromatopsia (no color)
#7B7B7B
Design tokens & code
CSS
--color: #4579d9; /* rgb */ color: rgb(69, 121, 217); /* oklch */ color: oklch(58.9% 0.157 261.5);
Tailwind
colors: {
custom: {
50: '#899fe5',
500: '#4579d9',
950: '#000000',
},
}SCSS
$custom: #4579d9; $custom-light: #899fe5; $custom-dark: #000000;
JSON
{
"hex": "#4579d9",
"rgb": {
"r": 69,
"g": 121,
"b": 217
},
"hsl": {
"h": 218.919,
"s": 66.071,
"l": 56.078
},
"oklch": {
"l": 0.5888,
"c": 0.15723,
"h": 261.5
},
"luminance": 0.1995
}Semantic roles & 50–950 ramp
primary
#4579D9
secondary
#DBC69E
accent
#AD3FE9
background
#F9F9FE
surface
#F1F2FC
border
#CBCCD5
text
#0D0E16
muted
#7E7E84