Colour

#57F8DD

#57F8DD
Cyan
Light
Nearest: Aquamarine

#57F8DD is a cyan with RGB values 87, 248, 221 and HSL 170°, 92%, 66%. It is a light colour, so black text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.

Colour values

#57F8DD#57F8DD

HEX#57F8DD

RGBrgb(87, 248, 221)

RGB (0–1)0.3412, 0.9725, 0.8667

RGB percentages34.1%, 97.3%, 86.7%

HSLhsl(169.9, 92%, 65.7%)

HSV / HSBhsv(169.9, 64.9%, 97.3%)

CMYK64.9%, 0%, 10.9%, 2.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,765,341

CSS custom property--colour: #57F8DD;

Brightness & contrast

Relative luminance0.74381WCAG 2.x, 0 is black and 1 is white

Perceived brightness209.6 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 15.88:1

Contrast with white1.32:1WCAG normal text: Fail

Contrast with black15.88:1WCAG normal text: AAA

Greyscale equivalent#D4D4D4

Inverted#A80722

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#EEEADCno red cones; affects about 1% of men; ΔE 47.5 from the original

Deuteranopia#D7D9DFno green cones; the most common form, about 1% of men; ΔE 48.6 from the original

Tritanopia#00FCF0no blue cones; rare, and affects men and women equally; ΔE 9.5 from the original

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

Contrast with white, large text1.32:1WCAG large text: Fail

Contrast with black, large text15.88:1WCAG large text: AAA

Named colours

Aquamarine · ΔE 9.8 Turquoise · ΔE 9.9 Aqua · ΔE 14.9 Cyan · ΔE 14.9 Medium aquamarine · ΔE 18.2 Medium turquoise · ΔE 18.5

Nearest named CSS colourAquamarine (#7FFFD4)ΔE 9.81, clearly different but related

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#F85772

Analogous#57F88D, #57C3F8

Triadic#DD57F8, #F8DD57

Split complementary#F857C3, #F88D57

Tetradic#8C57F8, #F85772, #C2F857

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#EAFEFB

Lighter +20%#B9FCF1

Lighter +10%#88FAE7

Darker −10%#26F6D3

Darker −20%#09E0BC

Darker −30%#07AF93

Darker −40%#057E6A

More saturated +25%#50FFE2

Less saturated −25%#6DE2CE

Channel breakdown

R87

G248

B221

Red87 (34.1%)

Green248 (97.3%)

Blue221 (86.7%)

Hue169.94°

Saturation (HSL)92%

Lightness65.69%

Dominant channelGreen

Hex per channelR 57 · G F8 · B DD

Keep nerding

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#57F8DD

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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