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Recognised as Colour

#73B8DD

  • #73B8DD
  • Blue
  • Dark
  • Nearest: Light skyblue

#73B8DD is a blue with RGB values 115, 184, 221 and HSL 201°, 61%, 66%. 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 skyblue.

Colour values

#73B8DD#73B8DD
HEX#73B8DD
RGBrgb(115, 184, 221)
RGB (0–1)0.451, 0.7216, 0.8667
RGB percentages45.1%, 72.2%, 86.7%
HSLhsl(200.9, 60.9%, 65.9%)
HSV / HSBhsv(200.9, 48%, 86.7%)
CMYK48%, 16.7%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,583,965
CSS custom property--colour: #73B8DD;

Brightness & contrast

Relative luminance0.43146WCAG 2.x, 0 is black and 1 is white
Perceived brightness171.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.63:1
Contrast with white2.18:1WCAG normal text: Fail
Contrast with black9.63:1WCAG normal text: AAA
Greyscale equivalent#ACACAC
Inverted#8C4722

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A6B6DFno red cones; affects about 1% of men; ΔE 15.8 from the original
Deuteranopia#97ABDCno green cones; the most common form, about 1% of men; ΔE 16.4 from the original
Tritanopia#3FC2C4no blue cones; rare, and affects men and women equally; ΔE 26.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.18:1WCAG large text: Fail
Contrast with black, large text9.63:1WCAG large text: AAA

Named colours

Light skyblue · ΔE 8.7Sky blue · ΔE 9.1Light steelblue · ΔE 16.1Deep skyblue · ΔE 18.2Light blue · ΔE 18.4Steel blue · ΔE 21.8
Nearest named CSS colourLight skyblue (#87CEFA)ΔE 8.74, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DD9873
Analogous#73DDCD, #7383DD
Triadic#DD73B8, #B8DD73
Split complementary#DD7383, #DDCD73
Tetradic#CD73DD, #DD9873, #83DD73

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#EEF6FB
Lighter +20%#C5E2F1
Lighter +10%#9CCDE7
Darker −10%#4AA3D3
Darker −20%#2E8BBC
Darker −30%#246C93
Darker −40%#1A4E6A
More saturated +25%#5DBFF3
Less saturated −25%#89B1C7

Channel breakdown

R115
G184
B221
Red115 (45.1%)
Green184 (72.2%)
Blue221 (86.7%)
Hue200.94°
Saturation (HSL)60.92%
Lightness65.88%
Dominant channelBlue
Hex per channelR 73 · G B8 · B DD

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Every value on this page was computed from “73b8dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.