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Recognised as Colour

#ADD7EF

  • #ADD7EF
  • Blue
  • Light
  • Nearest: Light blue

#ADD7EF is a blue with RGB values 173, 215, 239 and HSL 202°, 67%, 81%. It is a light colour, so black text on it reaches 13.7:1 contrast (AAA for normal text). The nearest named colour is Light blue.

Colour values

#ADD7EF#ADD7EF
HEX#ADD7EF
RGBrgb(173, 215, 239)
RGB (0–1)0.6784, 0.8431, 0.9373
RGB percentages67.8%, 84.3%, 93.7%
HSLhsl(201.8, 67.3%, 80.8%)
HSV / HSBhsv(201.8, 27.6%, 93.7%)
CMYK27.6%, 10%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,393,007
CSS custom property--colour: #ADD7EF;

Brightness & contrast

Relative luminance0.63717WCAG 2.x, 0 is black and 1 is white
Perceived brightness206.4 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 13.74:1
Contrast with white1.53:1WCAG normal text: Fail
Contrast with black13.74:1WCAG normal text: AAA
Greyscale equivalent#D0D0D0
Inverted#522810

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#CCD5F0no red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#C2CEEFno green cones; the most common form, about 1% of men; ΔE 11.1 from the original
Tritanopia#99DEDEno blue cones; rare, and affects men and women equally; ΔE 16.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.53:1WCAG large text: Fail
Contrast with black, large text13.74:1WCAG large text: AAA

Named colours

Light blue · ΔE 5.4Light steelblue · ΔE 8.9Sky blue · ΔE 9.4Powder blue · ΔE 10.3Light skyblue · ΔE 13.2Lavender · ΔE 15.9
Nearest named CSS colourLight blue (#ADD8E6)ΔE 5.41, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EFC5AD
Analogous#ADEFE6, #ADB6EF
Triadic#EFADD7, #D7EFAD
Split complementary#EFADB6, #EFE6AD
Tetradic#E6ADEF, #EFC5AD, #B6EFAD

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#FFFFFF
Lighter +10%#D8ECF7
Darker −10%#82C2E7
Darker −20%#58ADDE
Darker −30%#2D99D6
Darker −40%#227BAE
More saturated +25%#A1DAFB
Less saturated −25%#B9D4E3

Channel breakdown

R173
G215
B239
Red173 (67.8%)
Green215 (84.3%)
Blue239 (93.7%)
Hue201.82°
Saturation (HSL)67.35%
Lightness80.78%
Dominant channelBlue
Hex per channelR AD · G D7 · B EF

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Every value on this page was computed from “add7ef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.