Recognised as Colour

#28A3BB

#28A3BB
Cyan
Dark
Nearest: Cadetblue

#28A3BB is a cyan with RGB values 40, 163, 187 and HSL 190°, 65%, 45%. It is a dark colour, so black text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Cadetblue.

Colour values

#28A3BB#28A3BB

HEX#28A3BB

RGBrgb(40, 163, 187)

RGB (0–1)0.1569, 0.6392, 0.7333

RGB percentages15.7%, 63.9%, 73.3%

HSLhsl(189.8, 64.8%, 44.5%)

HSV / HSBhsv(189.8, 78.6%, 73.3%)

CMYK78.6%, 12.8%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,663,355

CSS custom property--colour: #28A3BB;

Brightness & contrast

Relative luminance0.30233WCAG 2.x, 0 is black and 1 is white

Perceived brightness141.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.05:1

Contrast with white2.98:1WCAG normal text: Fail

Contrast with black7.05:1WCAG normal text: AAA

Greyscale equivalent#8B8B8B

Inverted#D75C44

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#929EBCno red cones; affects about 1% of men; ΔE 27.2 from the original

Deuteranopia#7E8FBBno green cones; the most common form, about 1% of men; ΔE 29 from the original

Tritanopia#00ACAAno blue cones; rare, and affects men and women equally; ΔE 17.3 from the original

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

Contrast with white, large text2.98:1WCAG large text: Fail

Contrast with black, large text7.05:1WCAG large text: AAA

Named colours

Cadetblue · ΔE 15 Dark cyan · ΔE 17.2 Teal · ΔE 19.5 Sky blue · ΔE 19.8 Light seagreen · ΔE 20.7 Dark turquoise · ΔE 22.3

Nearest named CSS colourCadetblue (#5F9EA0)ΔE 15.05, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BB4028

Analogous#28BB8A, #2859BB

Triadic#BB28A3, #A3BB28

Split complementary#BB2859, #BB8A28

Tetradic#8A28BB, #BB4028, #59BB28

Tints, shades & saturation

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

Lighter +40%#BEE9F1

Lighter +30%#94DAE8

Lighter +20%#6ACCDF

Lighter +10%#40BED6

Darker −10%#1F7E91

Darker −20%#165A67

Darker −30%#0D353D

Darker −40%#041113

More saturated +25%#0CB6D7

Less saturated −25%#44909F

Channel breakdown

R40

G163

B187

Red40 (15.7%)

Green163 (63.9%)

Blue187 (73.3%)

Hue189.8°

Saturation (HSL)64.76%

Lightness44.51%

Dominant channelBlue

Hex per channelR 28 · G A3 · B BB

Keep nerding

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

#28A3BB

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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