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Recognised as Colour

#ADAADD

  • #ADAADD
  • Blue
  • Dark
  • Nearest: Light steelblue

#ADAADD is a blue with RGB values 173, 170, 221 and HSL 244°, 43%, 77%. It is a dark colour, so black text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#ADAADD#ADAADD
HEX#ADAADD
RGBrgb(173, 170, 221)
RGB (0–1)0.6784, 0.6667, 0.8667
RGB percentages67.8%, 66.7%, 86.7%
HSLhsl(243.5, 42.9%, 76.7%)
HSV / HSBhsv(243.5, 23.1%, 86.7%)
CMYK21.7%, 23.1%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,381,469
CSS custom property--colour: #ADAADD;

Brightness & contrast

Relative luminance0.42854WCAG 2.x, 0 is black and 1 is white
Perceived brightness177.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.57:1
Contrast with white2.19:1WCAG normal text: Fail
Contrast with black9.57:1WCAG normal text: AAA
Greyscale equivalent#AEAEAE
Inverted#525522

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9DB0DFno red cones; affects about 1% of men; ΔE 7.7 from the original
Deuteranopia#9CAEDCno green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#A3B3BBno blue cones; rare, and affects men and women equally; ΔE 24.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.19:1WCAG large text: Fail
Contrast with black, large text9.57:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 17.9Thistle · ΔE 18.3Plum · ΔE 21.1Light skyblue · ΔE 24.2Light slate grey · ΔE 25.3Steel blue · ΔE 25.7
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 17.9, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DADDAA
Analogous#AAC1DD, #C6AADD
Triadic#DDADAA, #AADDAD
Split complementary#DDC7AA, #C0DDAA
Tetradic#DDAAC1, #DADDAA, #AADDC6

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#F3F3FA
Lighter +10%#D0CEEC
Darker −10%#8A86CE
Darker −20%#6761C0
Darker −30%#4A44AA
Darker −40%#3A3586
More saturated +25%#A09BEC
Less saturated −25%#BAB9CE

Channel breakdown

R173
G170
B221
Red173 (67.8%)
Green170 (66.7%)
Blue221 (86.7%)
Hue243.53°
Saturation (HSL)42.86%
Lightness76.67%
Dominant channelBlue
Hex per channelR AD · G AA · B DD

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