#427AD7#427AD7
#427AD7 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 58.8% C 0.154 H 260.0°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).
Color values
| HEX | #427AD7 |
|---|---|
| RGB | rgb(66, 122, 215) |
| HSL | hsl(217, 65%, 55%) |
| HSV | hsv(217, 69%, 84%) |
| CMYK | cmyk(69.3%, 43.3%, 0%, 15.7%) |
| CIE-LAB | lab(51.82, 12.19, -53.19) |
| CIE-LCH | lch(51.82, 54.57, 282.91°) |
| OKLab | oklab(58.84% -0.0269 -0.152) |
| OKLCH | oklch(58.84% 0.154 260) |
| XYZ | xyz(21.4676, 19.9814, 67.0022) |
| Luminance | 0.1998 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Deep Sky Blue
#0D75F8
ΔE00 3.52
Clear Blue
#247AFD
ΔE00 3.73
Windows Blue
#3778BF
ΔE00 3.85
Lightish Blue
#3D7AFD
ΔE00 4.35
Azure
#007FFF
ΔE00 4.49
Cerulean Blue
#056EEE
ΔE00 4.61
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#427AD7 #D79F42
analogous
#42C4D7 #427AD7 #5542D7
triadic
#427AD7 #D7427A #7AD742
tetradic
#427AD7 #D742C4 #D79F42 #42D755
square
#427AD7 #D742C4 #D79F42 #42D755
split-complementary
#427AD7 #D75542 #C4D742
monochromatic
#1C4283 #265CB5 #427AD7 #759EE2 #A7C1EC
Accessibility & contrast
On white
4.20
#427AD7 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.00
#427AD7 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #427AD7
5.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##427AD7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##427AD7 | 1.00 | 4.20 | 5.00 | 5.00 |
| #FFFFFF | 4.20 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.00 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.00 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4D83DB
Deuteranopia (green-blind)
#3375D5
Tritanopia (blue-blind)
#00909E
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #427ad7; /* rgb */ color: rgb(66, 122, 215); /* oklch */ color: oklch(58.8% 0.154 260.0);
Tailwind
colors: {
custom: {
50: '#879fe4',
500: '#427ad7',
950: '#000000',
},
}SCSS
$custom: #427ad7; $custom-light: #879fe4; $custom-dark: #000000;
JSON
{
"hex": "#427ad7",
"rgb": {
"r": 66,
"g": 122,
"b": 215
},
"hsl": {
"h": 217.45,
"s": 65.066,
"l": 55.098
},
"oklch": {
"l": 0.58838,
"c": 0.15441,
"h": 260
},
"luminance": 0.19984
}Semantic roles & 50–950 ramp
primary
#427AD7
secondary
#DAC29B
accent
#A940E8
background
#F8F9FE
surface
#F0F2FC
border
#CBCCD5
text
#0D0E15
muted
#7D7E84