Recognised as Colour

#21FFFC

#21FFFC
Cyan
Light
Nearest: Aqua

#21FFFC is a cyan with RGB values 33, 255, 252 and HSL 179°, 100%, 56%. It is a light colour, so black text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#21FFFC#21FFFC

HEX#21FFFC

RGBrgb(33, 255, 252)

RGB (0–1)0.1294, 1, 0.9882

RGB percentages12.9%, 100%, 98.8%

HSLhsl(179.2, 100%, 56.5%)

HSV / HSBhsv(179.2, 87.1%, 100%)

CMYK87.1%, 0%, 1.2%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,228,220

CSS custom property--colour: #21FFFC;

Brightness & contrast

Relative luminance0.78872WCAG 2.x, 0 is black and 1 is white

Perceived brightness213.9 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.77:1

Contrast with white1.25:1WCAG normal text: Fail

Contrast with black16.77:1WCAG normal text: AAA

Greyscale equivalent#D0D0D0

Inverted#DE0003

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#EEF2FCno red cones; affects about 1% of men; ΔE 49.2 from the original

Deuteranopia#D2DDFDno green cones; the most common form, about 1% of men; ΔE 50.9 from the original

Tritanopia#00FFFEno blue cones; rare, and affects men and women equally; ΔE 1.3 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text1.25:1WCAG large text: Fail

Contrast with black, large text16.77:1WCAG large text: AAA

Named colours

Aqua · ΔE 1.7 Cyan · ΔE 1.7 Turquoise · ΔE 13.6 Dark turquoise · ΔE 17.8 Medium turquoise · ΔE 18.3 Aquamarine · ΔE 22.3

Nearest named CSS colourAqua (#00FFFF)ΔE 1.67, below the just-noticeable difference

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#FF2124

Analogous#21FF8D, #2193FF

Triadic#FC21FF, #FFFC21

Split complementary#FF2193, #FF8D21

Tetradic#8D21FF, #FF2124, #93FF21

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#EDFFFF

Lighter +30%#BAFFFE

Lighter +20%#87FFFD

Lighter +10%#54FFFD

Darker −10%#00EDEA

Darker −20%#00BAB7

Darker −30%#008785

Darker −40%#005453

More saturated +25%#21FFFC

Less saturated −25%#3DE3E1

Channel breakdown

R33

G255

B252

Red33 (12.9%)

Green255 (100%)

Blue252 (98.8%)

Hue179.19°

Saturation (HSL)100%

Lightness56.47%

Dominant channelGreen

Hex per channelR 21 · G FF · B FC

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#21FFFC

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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