Recognised as Colour

#427AFD

#427AFD
Blue
Dark
Nearest: Royal blue

#427AFD is a blue with RGB values 66, 122, 253 and HSL 222°, 98%, 63%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#427AFD#427AFD

HEX#427AFD

RGBrgb(66, 122, 253)

RGB (0–1)0.2588, 0.4784, 0.9922

RGB percentages25.9%, 47.8%, 99.2%

HSLhsl(222, 97.9%, 62.5%)

HSV / HSBhsv(222, 73.9%, 99.2%)

CMYK73.9%, 51.8%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,356,861

CSS custom property--colour: #427AFD;

Brightness & contrast

Relative luminance0.22169WCAG 2.x, 0 is black and 1 is white

Perceived brightness131.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.43:1

Contrast with white3.86:1WCAG normal text: Fail

Contrast with black5.43:1WCAG normal text: AA

Greyscale equivalent#787878

Inverted#BD8502

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1C8BFFno red cones; affects about 1% of men; ΔE 14.3 from the original

Deuteranopia#0079FAno green cones; the most common form, about 1% of men; ΔE 5 from the original

Tritanopia#009AB0no blue cones; rare, and affects men and women equally; ΔE 71.6 from the original

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

Contrast with white, large text3.86:1WCAG large text: AA

Contrast with black, large text5.43:1WCAG large text: AAA

Named colours

Royal blue · ΔE 8.3 Medium slateblue · ΔE 16.3 Dodgerblue · ΔE 18.2 Slate blue · ΔE 18.6 Medium purple · ΔE 23.3 Cornflower blue · ΔE 28

Nearest named CSS colourRoyal blue (#4169E1)ΔE 8.32, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FDC542

Analogous#42D8FD, #6742FD

Triadic#FD427A, #7AFD42

Split complementary#FD6742, #D8FD42

Tetradic#FD42D8, #FDC542, #42FD67

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#D9E5FF

Lighter +20%#A7C1FE

Lighter +10%#749EFE

Darker −10%#1056FC

Darker −20%#0242D7

Darker −30%#0232A4

Darker −40%#012372

More saturated +25%#4079FF

Less saturated −25%#5A84E5

Channel breakdown

R66

G122

B253

Red66 (25.9%)

Green122 (47.8%)

Blue253 (99.2%)

Hue222.03°

Saturation (HSL)97.91%

Lightness62.55%

Dominant channelBlue

Hex per channelR 42 · G 7A · B FD

Keep nerding

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

#427AFD

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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