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Recognised as Colour

#21FCF2

  • #21FCF2
  • Cyan
  • Light
  • Nearest: Aqua

#21FCF2 is a cyan with RGB values 33, 252, 242 and HSL 177°, 97%, 56%. It is a light colour, so black text on it reaches 16.3:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#21FCF2#21FCF2
HEX#21FCF2
RGBrgb(33, 252, 242)
RGB (0–1)0.1294, 0.9882, 0.949
RGB percentages12.9%, 98.8%, 94.9%
HSLhsl(177.3, 97.3%, 55.9%)
HSV / HSBhsv(177.3, 86.9%, 98.8%)
CMYK86.9%, 0%, 4%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,227,442
CSS custom property--colour: #21FCF2;

Brightness & contrast

Relative luminance0.76355WCAG 2.x, 0 is black and 1 is white
Perceived brightness210.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 16.27:1
Contrast with white1.29:1WCAG normal text: Fail
Contrast with black16.27:1WCAG normal text: AAA
Greyscale equivalent#CDCDCD
Inverted#DE030D

Colour vision & accessibility

Protanopia#EDEEF2no red cones; affects about 1% of men; ΔE 50.5 from the original
Deuteranopia#D1DAF4no green cones; the most common form, about 1% of men; ΔE 51.9 from the original
Tritanopia#00FFF8no blue cones; rare, and affects men and women equally; ΔE 2.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.29:1WCAG large text: Fail
Contrast with black, large text16.27:1WCAG large text: AAA

Named colours

Nearest named CSS colourAqua (#00FFFF)ΔE 5.43, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#FC212B
Analogous#21FC85, #2198FC
Triadic#F221FC, #FCF221
Split complementary#FC2198, #FC8521
Tetradic#8521FC, #FC212B, #98FC21

Tints, shades & saturation

Lighter +40%#EAFFFE
Lighter +30%#B8FEFB
Lighter +20%#86FDF8
Lighter +10%#53FDF5
Darker −10%#03E7DC
Darker −20%#02B5AC
Darker −30%#02827C
Darker −40%#01504C
More saturated +25%#1EFFF5
Less saturated −25%#3DE0D8

Channel breakdown

R33
G252
B242
Red33 (12.9%)
Green252 (98.8%)
Blue242 (94.9%)
Hue177.26°
Saturation (HSL)97.33%
Lightness55.88%
Dominant channelGreen
Hex per channelR 21 · G FC · B F2

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Every value on this page was computed from “21fcf2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.