Colour

#40A4EB

#40A4EB
Blue
Dark
Nearest: Deep skyblue

#40A4EB is a blue with RGB values 64, 164, 235 and HSL 205°, 81%, 59%. It is a dark colour, so black text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#40A4EB#40A4EB

HEX#40A4EB

RGBrgb(64, 164, 235)

RGB (0–1)0.251, 0.6431, 0.9216

RGB percentages25.1%, 64.3%, 92.2%

HSLhsl(204.9, 81%, 58.6%)

HSV / HSBhsv(204.9, 72.8%, 92.2%)

CMYK72.8%, 30.2%, 0%, 7.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,236,523

CSS custom property--colour: #40A4EB;

Brightness & contrast

Relative luminance0.33639WCAG 2.x, 0 is black and 1 is white

Perceived brightness152.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.73:1

Contrast with white2.72:1WCAG normal text: Fail

Contrast with black7.73:1WCAG normal text: AAA

Greyscale equivalent#949494

Inverted#BF5B14

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#83A6EEno red cones; affects about 1% of men; ΔE 13.7 from the original

Deuteranopia#6C96EAno green cones; the most common form, about 1% of men; ΔE 15.7 from the original

Tritanopia#00B5BDno blue cones; rare, and affects men and women equally; ΔE 41 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text2.72:1WCAG large text: Fail

Contrast with black, large text7.73:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 14.3 Cornflower blue · ΔE 16.3 Steel blue · ΔE 17 Light skyblue · ΔE 22.1 Dodgerblue · ΔE 25.6 Sky blue · ΔE 28.4

Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 14.25, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#EB8740

Analogous#40EBDD, #404EEB

Triadic#EB40A4, #A4EB40

Split complementary#EB404E, #EBDD40

Tetradic#DD40EB, #EB8740, #4EEB40

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#F9FCFE

Lighter +30%#CAE6FA

Lighter +20%#9CD0F5

Lighter +10%#6EBAF0

Darker −10%#188DE0

Darker −20%#1370B2

Darker −30%#0E5384

Darker −40%#093656

More saturated +25%#2CA7FF

Less saturated −25%#5AA0D1

Channel breakdown

R64

G164

B235

Red64 (25.1%)

Green164 (64.3%)

Blue235 (92.2%)

Hue204.91°

Saturation (HSL)81.04%

Lightness58.63%

Dominant channelBlue

Hex per channelR 40 · G A4 · B EB

Keep nerding

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

#40A4EB

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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