#427CDC#427CDC
#427CDC is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.6% C 0.159 H 259.9°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).
Color values
| HEX | #427CDC |
|---|---|
| RGB | rgb(66, 124, 220) |
| HSL | hsl(217, 69%, 56%) |
| HSV | hsv(217, 70%, 86%) |
| CMYK | cmyk(70%, 43.6%, 0%, 13.7%) |
| CIE-LAB | lab(52.66, 12.74, -54.66) |
| CIE-LCH | lch(52.66, 56.12, 283.12°) |
| OKLab | oklab(59.59% -0.0278 -0.1563) |
| OKLCH | oklch(59.59% 0.159 259.9) |
| XYZ | xyz(22.3680, 20.7385, 70.5204) |
| Luminance | 0.2074 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Clear Blue
#247AFD
ΔE00 3.21
Deep Sky Blue
#0D75F8
ΔE00 3.46
Azure
#007FFF
ΔE00 3.78
Lightish Blue
#3D7AFD
ΔE00 3.86
Dodger Blue
#3E82FC
ΔE00 3.99
Windows Blue
#3778BF
ΔE00 4.41
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#427CDC #DCA242
analogous
#42C9DC #427CDC #5542DC
triadic
#427CDC #DC427C #7CDC42
tetradic
#427CDC #DC42C9 #DCA242 #42DC55
square
#427CDC #DC42C9 #DCA242 #42DC55
split-complementary
#427CDC #DC5542 #C9DC42
monochromatic
#1A448A #235DBE #427CDC #76A0E6 #A9C4EF
Accessibility & contrast
On white
4.08
#427CDC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.15
#427CDC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #427CDC
5.15:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##427CDC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##427CDC | 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)
#4D85E0
Deuteranopia (green-blind)
#3177DA
Tritanopia (blue-blind)
#0092A1
Achromatopsia (no color)
#7E7E7E
Design tokens & code
CSS
--color: #427cdc; /* rgb */ color: rgb(66, 124, 220); /* oklch */ color: oklch(59.6% 0.159 259.9);
Tailwind
colors: {
custom: {
50: '#88a1e7',
500: '#427cdc',
950: '#000000',
},
}SCSS
$custom: #427cdc; $custom-light: #88a1e7; $custom-dark: #000000;
JSON
{
"hex": "#427cdc",
"rgb": {
"r": 66,
"g": 124,
"b": 220
},
"hsl": {
"h": 217.403,
"s": 68.75,
"l": 56.078
},
"oklch": {
"l": 0.59585,
"c": 0.15878,
"h": 259.9
},
"luminance": 0.20741
}Semantic roles & 50–950 ramp
primary
#427CDC
secondary
#DDC59D
accent
#AA3CEC
background
#F9F9FE
surface
#F1F2FC
border
#CBCCD5
text
#0D0E16
muted
#7E7E84