Colour

#21FFE7

#21FFE7
Cyan
Light
Nearest: Aqua

#21FFE7 is a cyan with RGB values 33, 255, 231 and HSL 174°, 100%, 56%. It is a light colour, so black text on it reaches 16.5:1 contrast (AAA for normal text). The nearest named colour is Aqua.

Colour values

#21FFE7#21FFE7

HEX#21FFE7

RGBrgb(33, 255, 231)

RGB (0–1)0.1294, 1, 0.9059

RGB percentages12.9%, 100%, 90.6%

HSLhsl(173.5, 100%, 56.5%)

HSV / HSBhsv(173.5, 87.1%, 100%)

CMYK87.1%, 0%, 9.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,228,199

CSS custom property--colour: #21FFE7;

Brightness & contrast

Relative luminance0.77613WCAG 2.x, 0 is black and 1 is white

Perceived brightness211.1 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.52:1

Contrast with white1.27:1WCAG normal text: Fail

Contrast with black16.52:1WCAG normal text: AAA

Greyscale equivalent#CECECE

Inverted#DE0018

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#F2F0E6no red cones; affects about 1% of men; ΔE 53.3 from the original

Deuteranopia#D8DCE9no green cones; the most common form, about 1% of men; ΔE 55 from the original

Tritanopia#00FFF7no blue cones; rare, and affects men and women equally; ΔE 8.6 from the original

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

Contrast with white, large text1.27:1WCAG large text: Fail

Contrast with black, large text16.52:1WCAG large text: AAA

Named colours

Aqua · ΔE 13 Cyan · ΔE 13 Turquoise · ΔE 13.5 Aquamarine · ΔE 14.7 Medium turquoise · ΔE 22.1 Dark turquoise · ΔE 23.3

Nearest named CSS colourAqua (#00FFFF)ΔE 12.99, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FF2139

Analogous#21FF78, #21A8FF

Triadic#E721FF, #FFE721

Split complementary#FF21A8, #FF7821

Tetradic#7821FF, #FF2139, #A8FF21

Tints, shades & saturation

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

Lighter +40%#EDFFFD

Lighter +30%#BAFFF8

Lighter +20%#87FFF2

Lighter +10%#54FFED

Darker −10%#00EDD3

Darker −20%#00BAA6

Darker −30%#008778

Darker −40%#00544B

More saturated +25%#21FFE7

Less saturated −25%#3DE3D1

Channel breakdown

R33

G255

B231

Red33 (12.9%)

Green255 (100%)

Blue231 (90.6%)

Hue173.51°

Saturation (HSL)100%

Lightness56.47%

Dominant channelGreen

Hex per channelR 21 · G FF · B E7

Keep nerding

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

#21FFE7

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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