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Recognised as Colour

#AAACD8

  • #AAACD8
  • Blue
  • Dark
  • Nearest: Light steelblue

#AAACD8 is a blue with RGB values 170, 172, 216 and HSL 237°, 37%, 76%. 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

#AAACD8#AAACD8
HEX#AAACD8
RGBrgb(170, 172, 216)
RGB (0–1)0.6667, 0.6745, 0.8471
RGB percentages66.7%, 67.5%, 84.7%
HSLhsl(237.4, 37.1%, 75.7%)
HSV / HSBhsv(237.4, 21.3%, 84.7%)
CMYK21.3%, 20.4%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,185,368
CSS custom property--colour: #AAACD8;

Brightness & contrast

Relative luminance0.43009WCAG 2.x, 0 is black and 1 is white
Perceived brightness177 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.6:1
Contrast with white2.19:1WCAG normal text: Fail
Contrast with black9.6:1WCAG normal text: AAA
Greyscale equivalent#AFAFAF
Inverted#555327

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A1B1DAno red cones; affects about 1% of men; ΔE 5.1 from the original
Deuteranopia#9FAED7no green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#A0B4BBno blue cones; rare, and affects men and women equally; ΔE 21.7 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 text9.6:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 14Thistle · ΔE 16.4Light skyblue · ΔE 21.9Light slate grey · ΔE 22.1Plum · ΔE 24Dark grey · ΔE 24.1
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 14.01, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D8D6AA
Analogous#AAC3D8, #BFAAD8
Triadic#D8AAAC, #ACD8AA
Split complementary#D8BFAA, #C3D8AA
Tetradic#D8AAC3, #D8D6AA, #AAD8BF

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#F0F0F8
Lighter +10%#CDCEE8
Darker −10%#878AC8
Darker −20%#6468B8
Darker −30%#494DA0
Darker −40%#393C7D
More saturated +25%#9B9EE8
Less saturated −25%#BABAC9

Channel breakdown

R170
G172
B216
Red170 (66.7%)
Green172 (67.5%)
Blue216 (84.7%)
Hue237.39°
Saturation (HSL)37.1%
Lightness75.69%
Dominant channelBlue
Hex per channelR AA · G AC · B D8

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Every value on this page was computed from “aaacd8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.