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Recognised as Colour

#28D0FF

  • #28D0FF
  • Cyan
  • Light
  • Nearest: Deep skyblue

#28D0FF is a cyan with RGB values 40, 208, 255 and HSL 193°, 100%, 58%. It is a light colour, so black text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#28D0FF#28D0FF
HEX#28D0FF
RGBrgb(40, 208, 255)
RGB (0–1)0.1569, 0.8157, 1
RGB percentages15.7%, 81.6%, 100%
HSLhsl(193.1, 100%, 57.8%)
HSV / HSBhsv(193.1, 84.3%, 100%)
CMYK84.3%, 18.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,674,943
CSS custom property--colour: #28D0FF;

Brightness & contrast

Relative luminance0.52783WCAG 2.x, 0 is black and 1 is white
Perceived brightness182.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.56:1
Contrast with white1.82:1WCAG normal text: Fail
Contrast with black11.56:1WCAG normal text: AAA
Greyscale equivalent#B0B0B0
Inverted#D72F00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B5CBFFno red cones; affects about 1% of men; ΔE 29.9 from the original
Deuteranopia#9AB8FFno green cones; the most common form, about 1% of men; ΔE 32.3 from the original
Tritanopia#00DEDFno blue cones; rare, and affects men and women equally; ΔE 28.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.82:1WCAG large text: Fail
Contrast with black, large text11.56:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 12Light skyblue · ΔE 15.3Sky blue · ΔE 16.6Dark turquoise · ΔE 26Light blue · ΔE 27.5Medium turquoise · ΔE 29
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 12, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF5728
Analogous#28FFC2, #2865FF
Triadic#FF28D0, #D0FF28
Split complementary#FF2865, #FFC228
Tetradic#C228FF, #FF5728, #65FF28

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F4FDFF
Lighter +30%#C1F1FF
Lighter +20%#8EE6FF
Lighter +10%#5BDBFF
Darker −10%#00BFF4
Darker −20%#0097C1
Darker −30%#006F8E
Darker −40%#00475B
More saturated +25%#28D0FF
Less saturated −25%#43C1E4

Channel breakdown

R40
G208
B255
Red40 (15.7%)
Green208 (81.6%)
Blue255 (100%)
Hue193.12°
Saturation (HSL)100%
Lightness57.84%
Dominant channelBlue
Hex per channelR 28 · G D0 · B FF

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Every value on this page was computed from “28d0ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.