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Recognised as Colour

#40A6FD

  • #40A6FD
  • Blue
  • Dark
  • Nearest: Cornflower blue

#40A6FD is a blue with RGB values 64, 166, 253 and HSL 208°, 98%, 62%. 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

#40A6FD#40A6FD
HEX#40A6FD
RGBrgb(64, 166, 253)
RGB (0–1)0.251, 0.651, 0.9922
RGB percentages25.1%, 65.1%, 99.2%
HSLhsl(207.6, 97.9%, 62.2%)
HSV / HSBhsv(207.6, 74.7%, 99.2%)
CMYK74.7%, 34.4%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,237,053
CSS custom property--colour: #40A6FD;

Brightness & contrast

Relative luminance0.35454WCAG 2.x, 0 is black and 1 is white
Perceived brightness157.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.09:1
Contrast with white2.6:1WCAG normal text: Fail
Contrast with black8.09:1WCAG normal text: AAA
Greyscale equivalent#979797
Inverted#BF5902

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7EAAFFno red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#6299FBno green cones; the most common form, about 1% of men; ΔE 12.5 from the original
Tritanopia#00BBC6no blue cones; rare, and affects men and women equally; ΔE 48.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.6:1WCAG large text: Fail
Contrast with black, large text8.09:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.2Dodgerblue · ΔE 17.3Deep skyblue · ΔE 20.2Steel blue · ΔE 23.9Light skyblue · ΔE 28.6Royal blue · ΔE 35.4
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.16, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FD9740
Analogous#40FDF5, #4048FD
Triadic#FD40A6, #A6FD40
Split complementary#FD4048, #FDF540
Tetradic#F540FD, #FD9740, #48FD40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D7EDFF
Lighter +20%#A5D5FE
Lighter +10%#72BEFE
Darker −10%#0E8EFC
Darker −20%#0274D5
Darker −30%#0258A2
Darker −40%#013D70
More saturated +25%#3EA6FF
Less saturated −25%#58A4E5

Channel breakdown

R64
G166
B253
Red64 (25.1%)
Green166 (65.1%)
Blue253 (99.2%)
Hue207.62°
Saturation (HSL)97.93%
Lightness62.16%
Dominant channelBlue
Hex per channelR 40 · G A6 · B FD

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Every value on this page was computed from “40a6fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.