Recognised as Colour
#40FBDD
- #40FBDD
- Cyan
- Light
- Nearest: Aquamarine
#40FBDD is a cyan with RGB values 64, 251, 221 and HSL 170°, 96%, 62%. It is a light colour, so black text on it reaches 16.1:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.
Colour values
#40FBDD#40FBDD
HEX#40FBDD
RGBrgb(64, 251, 221)
RGB (0–1)0.251, 0.9843, 0.8667
RGB percentages25.1%, 98.4%, 86.7%
HSLhsl(170.4, 95.9%, 61.8%)
HSV / HSBhsv(170.4, 74.5%, 98.4%)
CMYK74.5%, 0%, 12%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,258,781
CSS custom property--colour: #40FBDD;
Brightness & contrast
Relative luminance0.75305WCAG 2.x, 0 is black and 1 is white
Perceived brightness209.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.06:1
Contrast with white1.31:1WCAG normal text: Fail
Contrast with black16.06:1WCAG normal text: AAA
Greyscale equivalent#D1D1D1
Inverted#BF0422
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.31:1WCAG large text: Fail
Contrast with black, large text16.06:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#FB405E
Analogous#40FB7F, #40BCFB
Triadic#DD40FB, #FBDD40
Split complementary#FB40BB, #FB8040
Tetradic#8040FB, #FB405E, #BCFB40
Tints, shades & saturation
Channel breakdown
R64
G251
B221
Red64 (25.1%)
Green251 (98.4%)
Blue221 (86.7%)
Hue170.37°
Saturation (HSL)95.9%
Lightness61.76%
Dominant channelGreen
Hex per channelR 40 · G FB · B DD
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