Colour

#1BB1DD

#1BB1DD
Cyan
Dark
Nearest: Deep skyblue

#1BB1DD is a cyan with RGB values 27, 177, 221 and HSL 194°, 78%, 49%. It is a dark colour, so black text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#1BB1DD#1BB1DD

HEX#1BB1DD

RGBrgb(27, 177, 221)

RGB (0–1)0.1059, 0.6941, 0.8667

RGB percentages10.6%, 69.4%, 86.7%

HSLhsl(193.6, 78.2%, 48.6%)

HSV / HSBhsv(193.6, 87.8%, 86.7%)

CMYK87.8%, 19.9%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,815,005

CSS custom property--colour: #1BB1DD;

Brightness & contrast

Relative luminance0.36898WCAG 2.x, 0 is black and 1 is white

Perceived brightness155.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 8.38:1

Contrast with white2.51:1WCAG normal text: Fail

Contrast with black8.38:1WCAG normal text: AAA

Greyscale equivalent#949494

Inverted#E44E22

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#99ADDFno red cones; affects about 1% of men; ΔE 26.5 from the original

Deuteranopia#809CDCno green cones; the most common form, about 1% of men; ΔE 28 from the original

Tritanopia#00BEBFno blue cones; rare, and affects men and women equally; ΔE 26.9 from the original

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

Contrast with white, large text2.51:1WCAG large text: Fail

Contrast with black, large text8.38:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 12 Light skyblue · ΔE 16.7 Sky blue · ΔE 17.5 Steel blue · ΔE 22.6 Cadetblue · ΔE 25.7 Dark turquoise · ΔE 27.9

Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 12.01, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DD471B

Analogous#1BDDA8, #1B50DD

Triadic#DD1BB1, #B1DD1B

Split complementary#DD1B50, #DDA81B

Tetradic#A81BDD, #DD471B, #50DD1B

Tints, shades & saturation

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

Lighter +40%#CBEEF9

Lighter +30%#9EE0F3

Lighter +20%#70D1EE

Lighter +10%#43C3E8

Darker −10%#158DB0

Darker −20%#106882

Darker −30%#0A4455

Darker −40%#051F27

More saturated +25%#00C0F8

Less saturated −25%#3AA0BE

Channel breakdown

R27

G177

B221

Red27 (10.6%)

Green177 (69.4%)

Blue221 (86.7%)

Hue193.61°

Saturation (HSL)78.23%

Lightness48.63%

Dominant channelBlue

Hex per channelR 1B · G B1 · B DD

Keep nerding

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

#1BB1DD

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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