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Colour

#A1B2DD

  • #A1B2DD
  • Blue
  • Dark
  • Nearest: Light steelblue

#A1B2DD is a blue with RGB values 161, 178, 221 and HSL 223°, 47%, 75%. It is a dark colour, so black text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#A1B2DD#A1B2DD
HEX#A1B2DD
RGBrgb(161, 178, 221)
RGB (0–1)0.6314, 0.698, 0.8667
RGB percentages63.1%, 69.8%, 86.7%
HSLhsl(223, 46.9%, 74.9%)
HSV / HSBhsv(223, 27.1%, 86.7%)
CMYK27.1%, 19.5%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,597,085
CSS custom property--colour: #A1B2DD;

Brightness & contrast

Relative luminance0.44638WCAG 2.x, 0 is black and 1 is white
Perceived brightness178.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.93:1
Contrast with white2.12:1WCAG normal text: Fail
Contrast with black9.93:1WCAG normal text: AAA
Greyscale equivalent#B1B1B1
Inverted#5E4D22

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A5B5DFno red cones; affects about 1% of men; ΔE 1.3 from the original
Deuteranopia#A0B0DCno green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#91BAC0no blue cones; rare, and affects men and women equally; ΔE 22.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.12:1WCAG large text: Fail
Contrast with black, large text9.93:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 11.3Light skyblue · ΔE 16.9Thistle · ΔE 18.7Sky blue · ΔE 19.8Light slate grey · ΔE 21.7Light blue · ΔE 22
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 11.31, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DDCCA1
Analogous#A1D0DD, #AEA1DD
Triadic#DDA1B2, #B2DDA1
Split complementary#DDAEA1, #D0DDA1
Tetradic#DDA1D0, #DDCCA1, #A1DDAE

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#ECEFF8
Lighter +10%#C6D1EB
Darker −10%#7C93CF
Darker −20%#5675C2
Darker −30%#3D5BA8
Darker −40%#2F4783
More saturated +25%#91ABED
Less saturated −25%#B1B9CD

Channel breakdown

R161
G178
B221
Red161 (63.1%)
Green178 (69.8%)
Blue221 (86.7%)
Hue223°
Saturation (HSL)46.88%
Lightness74.9%
Dominant channelBlue
Hex per channelR A1 · G B2 · B DD

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Every value on this page was computed from “a1b2dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.