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Recognised as Colour

#81BBFC

  • #81BBFC
  • Blue
  • Dark
  • Nearest: Light skyblue

#81BBFC is a blue with RGB values 129, 187, 252 and HSL 212°, 95%, 75%. It is a dark colour, so black text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Light skyblue.

Colour values

#81BBFC#81BBFC
HEX#81BBFC
RGBrgb(129, 187, 252)
RGB (0–1)0.5059, 0.7333, 0.9882
RGB percentages50.6%, 73.3%, 98.8%
HSLhsl(211.7, 95.3%, 74.7%)
HSV / HSBhsv(211.7, 48.8%, 98.8%)
CMYK48.8%, 25.8%, 0%, 1.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,502,268
CSS custom property--colour: #81BBFC;

Brightness & contrast

Relative luminance0.47236WCAG 2.x, 0 is black and 1 is white
Perceived brightness180.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.45:1
Contrast with white2.01:1WCAG normal text: Fail
Contrast with black10.45:1WCAG normal text: AAA
Greyscale equivalent#B3B3B3
Inverted#7E4403

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A1BEFFno red cones; affects about 1% of men; ΔE 8.1 from the original
Deuteranopia#92B1FBno green cones; the most common form, about 1% of men; ΔE 9.7 from the original
Tritanopia#47CAD1no blue cones; rare, and affects men and women equally; ΔE 39.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.01:1WCAG large text: Fail
Contrast with black, large text10.45:1WCAG large text: AAA

Named colours

Light skyblue · ΔE 14.3Deep skyblue · ΔE 16.9Cornflower blue · ΔE 20Sky blue · ΔE 21.9Steel blue · ΔE 22.8Light steelblue · ΔE 23.1
Nearest named CSS colourLight skyblue (#87CEFA)ΔE 14.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FCC281
Analogous#81F8FC, #8581FC
Triadic#FC81BB, #BBFC81
Split complementary#FC8481, #F9FC81
Tetradic#FC81F8, #FCC281, #81FC84

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E5F1FE
Lighter +10%#B3D6FD
Darker −10%#4FA0FB
Darker −20%#1D85FA
Darker −30%#056CDF
Darker −40%#0454AD
More saturated +25%#7EBBFF
Less saturated −25%#91BCEC

Channel breakdown

R129
G187
B252
Red129 (50.6%)
Green187 (73.3%)
Blue252 (98.8%)
Hue211.71°
Saturation (HSL)95.35%
Lightness74.71%
Dominant channelBlue
Hex per channelR 81 · G BB · B FC

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