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Recognised as Colour

#81A0E8

  • #81A0E8
  • Blue
  • Dark
  • Nearest: Cornflower blue

#81A0E8 is a blue with RGB values 129, 160, 232 and HSL 222°, 69%, 71%. It is a dark colour, so black text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#81A0E8#81A0E8
HEX#81A0E8
RGBrgb(129, 160, 232)
RGB (0–1)0.5059, 0.6275, 0.9098
RGB percentages50.6%, 62.7%, 91%
HSLhsl(221.9, 69.1%, 70.8%)
HSV / HSBhsv(221.9, 44.4%, 91%)
CMYK44.4%, 31%, 0%, 9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,495,336
CSS custom property--colour: #81A0E8;

Brightness & contrast

Relative luminance0.35635WCAG 2.x, 0 is black and 1 is white
Perceived brightness161.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.13:1
Contrast with white2.58:1WCAG normal text: Fail
Contrast with black8.13:1WCAG normal text: AAA
Greyscale equivalent#9F9F9F
Inverted#7E5F17

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#86A6EBno red cones; affects about 1% of men; ΔE 2.9 from the original
Deuteranopia#7B9DE6no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#5BAFBAno blue cones; rare, and affects men and women equally; ΔE 40.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.58:1WCAG large text: Fail
Contrast with black, large text8.13:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.7Steel blue · ΔE 19.7Dodgerblue · ΔE 24.8Light skyblue · ΔE 25.6Deep skyblue · ΔE 26.5Light steelblue · ΔE 28.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.66, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E8C981
Analogous#81D3E8, #9581E8
Triadic#E881A0, #A0E881
Split complementary#E89581, #D3E881
Tetradic#E881D4, #E8C981, #81E895

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#D7E1F8
Lighter +10%#ACC1F0
Darker −10%#567FE0
Darker −20%#2B5FD8
Darker −30%#204BB0
Darker −40%#183985
More saturated +25%#6E99FB
Less saturated −25%#94A7D5

Channel breakdown

R129
G160
B232
Red129 (50.6%)
Green160 (62.7%)
Blue232 (91%)
Hue221.94°
Saturation (HSL)69.13%
Lightness70.78%
Dominant channelBlue
Hex per channelR 81 · G A0 · B E8

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Every value on this page was computed from “81a0e8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.