Colour

#21C6DE

#21C6DE
Cyan
Dark
Nearest: Dark turquoise

#21C6DE is a cyan with RGB values 33, 198, 222 and HSL 188°, 74%, 50%. It is a dark colour, so black text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#21C6DE#21C6DE

HEX#21C6DE

RGBrgb(33, 198, 222)

RGB (0–1)0.1294, 0.7765, 0.8706

RGB percentages12.9%, 77.6%, 87.1%

HSLhsl(187.6, 74.1%, 50%)

HSV / HSBhsv(187.6, 85.1%, 87.1%)

CMYK85.1%, 10.8%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,213,598

CSS custom property--colour: #21C6DE;

Brightness & contrast

Relative luminance0.45985WCAG 2.x, 0 is black and 1 is white

Perceived brightness170.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 10.2:1

Contrast with white2.06:1WCAG normal text: Fail

Contrast with black10.2:1WCAG normal text: AAA

Greyscale equivalent#A5A5A5

Inverted#DE3921

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#B2BFDFno red cones; affects about 1% of men; ΔE 33.9 from the original

Deuteranopia#9AADDEno green cones; the most common form, about 1% of men; ΔE 35.9 from the original

Tritanopia#00D0CDno blue cones; rare, and affects men and women equally; ΔE 16.9 from the original

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

Contrast with white, large text2.06:1WCAG large text: Fail

Contrast with black, large text10.2:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 13.4 Medium turquoise · ΔE 16.5 Sky blue · ΔE 17.2 Light seagreen · ΔE 19.7 Light skyblue · ΔE 21.7 Cadetblue · ΔE 23

Nearest named CSS colourDark turquoise (#00CED1)ΔE 13.37, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DE3921

Analogous#21DE97, #2168DE

Triadic#DE21C6, #C6DE21

Split complementary#DE2168, #DE9721

Tetradic#9721DE, #DE3921, #68DE21

Tints, shades & saturation

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

Lighter +40%#D3F4F8

Lighter +30%#A6E8F2

Lighter +20%#7ADDEB

Lighter +10%#4DD1E5

Darker −10%#1A9EB2

Darker −20%#147785

Darker −30%#0D4F59

Darker −40%#07282C

More saturated +25%#01DEFE

Less saturated −25%#41AEBE

Channel breakdown

R33

G198

B222

Red33 (12.9%)

Green198 (77.6%)

Blue222 (87.1%)

Hue187.62°

Saturation (HSL)74.12%

Lightness50%

Dominant channelBlue

Hex per channelR 21 · G C6 · B DE

Keep nerding

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

#21C6DE

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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