Cornflower
#428CCD · Cornflower
#428CCD is Cornflower, a cool blue color. It has an RGB value of 66, 140, 205 and a relative luminance of 0.243, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.24
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
3.58:1
AA normal✕
AA large✓
AAA normal✕
On black
The quick fox
5.86:1
AA normal✓
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #428CCD?
#428CCD is Cornflower, a cool blue color. In RGB it is 66, 140, 205, and in HSL it is 208°, 58%, 53%.
Is #428CCD a light or dark color?
#428CCD has a relative luminance of 0.243, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #428CCD?
Its complementary color is #CD8342. For softer combinations, try the analogous or split-complementary harmonies shown above.