#427BCA#427BCA
#427BCA is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 58.3% C 0.136 H 257.0°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).
Color values
| HEX | #427BCA |
|---|---|
| RGB | rgb(66, 123, 202) |
| HSL | hsl(215, 56%, 53%) |
| HSV | hsv(215, 67%, 79%) |
| CMYK | cmyk(67.3%, 39.1%, 0%, 20.8%) |
| CIE-LAB | lab(51.37, 6.96, -46.53) |
| CIE-LCH | lch(51.37, 47.04, 278.50°) |
| OKLab | oklab(58.25% -0.0305 -0.1325) |
| OKLCH | oklch(58.25% 0.136 257) |
| XYZ | xyz(19.9865, 19.5864, 58.5929) |
| Luminance | 0.1959 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 2.45
Bluish
#2976BB
ΔE00 4.25
Cool Blue
#4984B8
ΔE00 4.40
Steel Blue
#4682B4
ΔE00 4.48
Deep Sky Blue
#0D75F8
ΔE00 4.63
Off Blue
#5684AE
ΔE00 4.88
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#427BCA #CA9142
analogous
#42BFCA #427BCA #4D42CA
triadic
#427BCA #CA427B #7BCA42
tetradic
#427BCA #CA42BF #CA9142 #42CA4D
square
#427BCA #CA42BF #CA9142 #42CA4D
split-complementary
#427BCA #CA4D42 #BFCA42
monochromatic
#204272 #2D5EA2 #427BCA #729CD7 #A2BEE5
Accessibility & contrast
On white
4.27
#427BCA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.92
#427BCA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #427BCA
4.92:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##427BCA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##427BCA | 1.00 | 4.27 | 4.92 | 4.92 |
| #FFFFFF | 4.27 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.92 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.92 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5781CD
Deuteranopia (green-blind)
#4375C8
Tritanopia (blue-blind)
#008D99
Achromatopsia (no color)
#7A7A7A
Design tokens & code
CSS
--color: #427bca; /* rgb */ color: rgb(66, 123, 202); /* oklch */ color: oklch(58.3% 0.136 257.0);
Tailwind
colors: {
custom: {
50: '#85a0da',
500: '#427bca',
950: '#000000',
},
}SCSS
$custom: #427bca; $custom-light: #85a0da; $custom-dark: #000000;
JSON
{
"hex": "#427bca",
"rgb": {
"r": 66,
"g": 123,
"b": 202
},
"hsl": {
"h": 214.853,
"s": 56.198,
"l": 52.549
},
"oklch": {
"l": 0.58252,
"c": 0.13595,
"h": 257
},
"luminance": 0.19588
}Semantic roles & 50–950 ramp
primary
#427BCA
secondary
#D1B996
accent
#A048DF
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83