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Colour

#40A1FF

  • #40A1FF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#40A1FF is a blue with RGB values 64, 161, 255 and HSL 210°, 100%, 63%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#40A1FF#40A1FF
HEX#40A1FF
RGBrgb(64, 161, 255)
RGB (0–1)0.251, 0.6314, 1
RGB percentages25.1%, 63.1%, 100%
HSLhsl(209.5, 100%, 62.5%)
HSV / HSBhsv(209.5, 74.9%, 100%)
CMYK74.9%, 36.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,235,775
CSS custom property--colour: #40A1FF;

Brightness & contrast

Relative luminance0.338WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.76:1
Contrast with white2.71:1WCAG normal text: Fail
Contrast with black7.76:1WCAG normal text: AAA
Greyscale equivalent#939393
Inverted#BF5E00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#75A7FFno red cones; affects about 1% of men; ΔE 8.7 from the original
Deuteranopia#5895FDno green cones; the most common form, about 1% of men; ΔE 10.4 from the original
Tritanopia#00B7C4no blue cones; rare, and affects men and women equally; ΔE 52 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.71:1WCAG large text: Fail
Contrast with black, large text7.76:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.9Dodgerblue · ΔE 12.5Deep skyblue · ΔE 25Steel blue · ΔE 26.6Royal blue · ΔE 30.8Light skyblue · ΔE 33.1
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.95, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF9E40
Analogous#40FFFD, #4042FF
Triadic#FF40A1, #A1FF40
Split complementary#FF4042, #FFFD40
Tetradic#FD40FF, #FF9E40, #42FF40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D9ECFF
Lighter +20%#A6D3FF
Lighter +10%#73BAFF
Darker −10%#0D88FF
Darker −20%#006ED9
Darker −30%#0054A6
Darker −40%#003A73
More saturated +25%#40A1FF
Less saturated −25%#58A1E7

Channel breakdown

R64
G161
B255
Red64 (25.1%)
Green161 (63.1%)
Blue255 (100%)
Hue209.53°
Saturation (HSL)100%
Lightness62.55%
Dominant channelBlue
Hex per channelR 40 · G A1 · B FF

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Every value on this page was computed from “40a1ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.