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Recognised as Colour

#28D3BB

  • #28D3BB
  • Cyan
  • Light
  • Nearest: Turquoise

#28D3BB is a cyan with RGB values 40, 211, 187 and HSL 172°, 68%, 49%. It is a light colour, so black text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Turquoise.

Colour values

#28D3BB#28D3BB
HEX#28D3BB
RGBrgb(40, 211, 187)
RGB (0–1)0.1569, 0.8275, 0.7333
RGB percentages15.7%, 82.7%, 73.3%
HSLhsl(171.6, 68.1%, 49.2%)
HSV / HSBhsv(171.6, 81%, 82.7%)
CMYK81%, 0%, 11.4%, 17.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,675,643
CSS custom property--colour: #28D3BB;

Brightness & contrast

Relative luminance0.50628WCAG 2.x, 0 is black and 1 is white
Perceived brightness174.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.13:1
Contrast with white1.89:1WCAG normal text: Fail
Contrast with black11.13:1WCAG normal text: AAA
Greyscale equivalent#ADADAD
Inverted#D72C44

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C9C6BAno red cones; affects about 1% of men; ΔE 46.1 from the original
Deuteranopia#B4B6BDno green cones; the most common form, about 1% of men; ΔE 47.5 from the original
Tritanopia#00D7CCno blue cones; rare, and affects men and women equally; ΔE 7.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.89:1WCAG large text: Fail
Contrast with black, large text11.13:1WCAG large text: AAA

Named colours

Turquoise · ΔE 6.8Medium aquamarine · ΔE 11.7Medium turquoise · ΔE 12.5Dark turquoise · ΔE 15.1Light seagreen · ΔE 15.4Aquamarine · ΔE 18.4
Nearest named CSS colourTurquoise (#40E0D0)ΔE 6.81, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D32840
Analogous#28D366, #2895D3
Triadic#BB28D3, #D3BB28
Split complementary#D32896, #D36528
Tetradic#6528D3, #D32840, #96D328

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D1F6F1
Lighter +30%#A6EEE4
Lighter +20%#7BE6D7
Lighter +10%#50DECA
Darker −10%#20A895
Darker −20%#187D6F
Darker −30%#105249
Darker −40%#072823
More saturated +25%#09F2D2
Less saturated −25%#47B4A4

Channel breakdown

R40
G211
B187
Red40 (15.7%)
Green211 (82.7%)
Blue187 (73.3%)
Hue171.58°
Saturation (HSL)68.13%
Lightness49.22%
Dominant channelGreen
Hex per channelR 28 · G D3 · B BB

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Every value on this page was computed from “28d3bb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.