Nerdulator> put something in

Recognised as Colour

#81A5EE

  • #81A5EE
  • Blue
  • Dark
  • Nearest: Cornflower blue

#81A5EE is a blue with RGB values 129, 165, 238 and HSL 220°, 76%, 72%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#81A5EE#81A5EE
HEX#81A5EE
RGBrgb(129, 165, 238)
RGB (0–1)0.5059, 0.6471, 0.9333
RGB percentages50.6%, 64.7%, 93.3%
HSLhsl(220.2, 76.2%, 72%)
HSV / HSBhsv(220.2, 45.8%, 93.3%)
CMYK45.8%, 30.7%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,496,622
CSS custom property--colour: #81A5EE;

Brightness & contrast

Relative luminance0.3775WCAG 2.x, 0 is black and 1 is white
Perceived brightness165.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.55:1
Contrast with white2.46:1WCAG normal text: Fail
Contrast with black8.55:1WCAG normal text: AAA
Greyscale equivalent#A3A3A3
Inverted#7E5A11

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8AABF1no red cones; affects about 1% of men; ΔE 3 from the original
Deuteranopia#7EA1ECno green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#56B4BFno blue cones; rare, and affects men and women equally; ΔE 41 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.46:1WCAG large text: Fail
Contrast with black, large text8.55:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 10.9Steel blue · ΔE 20.5Light skyblue · ΔE 24.4Dodgerblue · ΔE 24.7Deep skyblue · ΔE 25Light steelblue · ΔE 28.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 10.94, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EECA81
Analogous#81DCEE, #9381EE
Triadic#EE81A5, #A5EE81
Split complementary#EE9381, #DCEE81
Tetradic#EE81DC, #EECA81, #81EE93

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DBE5FA
Lighter +10%#AEC5F4
Darker −10%#5485E8
Darker −20%#2765E2
Darker −30%#194FBD
Darker −40%#133C90
More saturated +25%#709FFF
Less saturated −25%#93ABDC

Channel breakdown

R129
G165
B238
Red129 (50.6%)
Green165 (64.7%)
Blue238 (93.3%)
Hue220.18°
Saturation (HSL)76.22%
Lightness71.96%
Dominant channelBlue
Hex per channelR 81 · G A5 · B EE

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “81a5ee” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.