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Recognised as Colour

#ADD8D1

  • #ADD8D1
  • Cyan
  • Light
  • Nearest: Powder blue

#ADD8D1 is a cyan with RGB values 173, 216, 209 and HSL 170°, 36%, 76%. It is a light colour, so black text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Powder blue.

Colour values

#ADD8D1#ADD8D1
HEX#ADD8D1
RGBrgb(173, 216, 209)
RGB (0–1)0.6784, 0.8471, 0.8196
RGB percentages67.8%, 84.7%, 82%
HSLhsl(170.2, 35.5%, 76.3%)
HSV / HSBhsv(170.2, 19.9%, 84.7%)
CMYK19.9%, 0%, 3.2%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,393,233
CSS custom property--colour: #ADD8D1;

Brightness & contrast

Relative luminance0.62599WCAG 2.x, 0 is black and 1 is white
Perceived brightness203.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.52:1
Contrast with white1.55:1WCAG normal text: Fail
Contrast with black13.52:1WCAG normal text: AAA
Greyscale equivalent#CECECE
Inverted#52272E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D4D3D1no red cones; affects about 1% of men; ΔE 15.6 from the original
Deuteranopia#CBCDD2no green cones; the most common form, about 1% of men; ΔE 15.8 from the original
Tritanopia#A1DAD6no blue cones; rare, and affects men and women equally; ΔE 4.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.55:1WCAG large text: Fail
Contrast with black, large text13.52:1WCAG large text: AAA

Named colours

Powder blue · ΔE 7.5Pale turquoise · ΔE 9.6Light blue · ΔE 11.3Light grey · ΔE 15.5Light cyan · ΔE 15.8Gainsboro · ΔE 16.1
Nearest named CSS colourPowder blue (#B0E0E6)ΔE 7.53, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D8ADB4
Analogous#ADD8BB, #ADCAD8
Triadic#D1ADD8, #D8D1AD
Split complementary#D8ADCA, #D8BBAD
Tetradic#BBADD8, #D8ADB4, #CAD8AD

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#F2F9F8
Lighter +10%#D0E8E4
Darker −10%#8AC8BE
Darker −20%#68B7AA
Darker −30%#4CA092
Darker −40%#3C7D73
More saturated +25%#9EE7DB
Less saturated −25%#BCC9C7

Channel breakdown

R173
G216
B209
Red173 (67.8%)
Green216 (84.7%)
Blue209 (82%)
Hue170.23°
Saturation (HSL)35.54%
Lightness76.27%
Dominant channelGreen
Hex per channelR AD · G D8 · B D1

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Every value on this page was computed from “add8d1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.