Cornflower
#128CD3 · Cornflower
#128CD3 is Cornflower, a cool blue color. It has an RGB value of 18, 140, 211 and a relative luminance of 0.236, 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
3.67:1
AA normal✕
AA large✓
AAA normal✕
On black
The quick fox
5.72:1
AA normal✓
AA large✓
AAA normal✕
Color harmonies
Shades & tints
Similar named colors
Frequently asked
What is the color #128CD3?
#128CD3 is Cornflower, a cool blue color. In RGB it is 18, 140, 211, and in HSL it is 202°, 84%, 45%.
Is #128CD3 a light or dark color?
#128CD3 has a relative luminance of 0.236, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #128CD3?
Its complementary color is #D35912. For softer combinations, try the analogous or split-complementary harmonies shown above.