Colour

#1572DA

#1572DA
Blue
Dark
Nearest: Dodgerblue

#1572DA is a blue with RGB values 21, 114, 218 and HSL 212°, 82%, 47%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1572DA#1572DA

HEX#1572DA

RGBrgb(21, 114, 218)

RGB (0–1)0.0824, 0.4471, 0.8549

RGB percentages8.2%, 44.7%, 85.5%

HSLhsl(211.7, 82.4%, 46.9%)

HSV / HSBhsv(211.7, 90.4%, 85.5%)

CMYK90.4%, 47.7%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,405,658

CSS custom property--colour: #1572DA;

Brightness & contrast

Relative luminance0.17256WCAG 2.x, 0 is black and 1 is white

Perceived brightness114.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.72:1

Contrast with white4.72:1WCAG normal text: AA

Contrast with black4.45:1WCAG normal text: Fail

Greyscale equivalent#666666

Inverted#EA8D25

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#347CDEno red cones; affects about 1% of men; ΔE 5.7 from the original

Deuteranopia#006CD8no green cones; the most common form, about 1% of men; ΔE 3.7 from the original

Tritanopia#008B9Bno blue cones; rare, and affects men and women equally; ΔE 58.1 from the original

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

Contrast with white, large text4.72:1WCAG large text: AAA

Contrast with black, large text4.45:1WCAG large text: AA

Named colours

Dodgerblue · ΔE 11.9 Royal blue · ΔE 13.4 Cornflower blue · ΔE 17.8 Slate blue · ΔE 22.5 Medium purple · ΔE 25.8 Medium slateblue · ΔE 27.9

Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.94, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DA7D15

Analogous#15D5DA, #1A15DA

Triadic#DA1572, #72DA15

Split complementary#DA1A15, #D5DA15

Tetradic#DA15D5, #DA7D15, #15DA1A

Tints, shades & saturation

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

Lighter +40%#C2DCF9

Lighter +30%#93C1F5

Lighter +20%#65A7F0

Lighter +10%#368CEC

Darker −10%#115AAB

Darker −20%#0C417D

Darker −30%#08294E

Darker −40%#031120

More saturated +25%#0071EF

Less saturated −25%#3374BC

Channel breakdown

R21

G114

B218

Red21 (8.2%)

Green114 (44.7%)

Blue218 (85.5%)

Hue211.68°

Saturation (HSL)82.43%

Lightness46.86%

Dominant channelBlue

Hex per channelR 15 · G 72 · B DA

Keep nerding

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#1572DA

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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