Colour

#247FDD

#247FDD
Blue
Dark
Nearest: Dodgerblue

#247FDD is a blue with RGB values 36, 127, 221 and HSL 210°, 73%, 50%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#247FDD#247FDD

HEX#247FDD

RGBrgb(36, 127, 221)

RGB (0–1)0.1412, 0.498, 0.8667

RGB percentages14.1%, 49.8%, 86.7%

HSLhsl(210.5, 73.1%, 50.4%)

HSV / HSBhsv(210.5, 83.7%, 86.7%)

CMYK83.7%, 42.5%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,392,029

CSS custom property--colour: #247FDD;

Brightness & contrast

Relative luminance0.20774WCAG 2.x, 0 is black and 1 is white

Perceived brightness124.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.15:1

Contrast with white4.07:1WCAG normal text: Fail

Contrast with black5.15:1WCAG normal text: AA

Greyscale equivalent#727272

Inverted#DB8022

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4F87E1no red cones; affects about 1% of men; ΔE 5.8 from the original

Deuteranopia#2B76DBno green cones; the most common form, about 1% of men; ΔE 6.7 from the original

Tritanopia#0096A3no blue cones; rare, and affects men and women equally; ΔE 53.2 from the original

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

Contrast with white, large text4.07:1WCAG large text: AA

Contrast with black, large text5.15:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 10.8 Cornflower blue · ΔE 11.1 Royal blue · ΔE 21.5 Steel blue · ΔE 25.9 Slate blue · ΔE 29.2 Medium purple · ΔE 29.4

Nearest named CSS colourDodgerblue (#1E90FF)ΔE 10.76, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DD8224

Analogous#24DCDD, #2524DD

Triadic#DD247F, #7FDD24

Split complementary#DD2524, #DCDD24

Tetradic#DD24DC, #DD8224, #24DD25

Tints, shades & saturation

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

Lighter +40%#D5E6F8

Lighter +30%#A8CCF2

Lighter +20%#7CB3EB

Lighter +10%#5099E4

Darker −10%#1C66B2

Darker −20%#154D86

Darker −30%#0E335A

Darker −40%#071A2E

More saturated +25%#047EFD

Less saturated −25%#4480BD

Channel breakdown

R36

G127

B221

Red36 (14.1%)

Green127 (49.8%)

Blue221 (86.7%)

Hue210.49°

Saturation (HSL)73.12%

Lightness50.39%

Dominant channelBlue

Hex per channelR 24 · G 7F · B DD

Keep nerding

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#247FDD

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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