Colour

#2175D9

#2175D9
Blue
Dark
Nearest: Dodgerblue

#2175D9 is a blue with RGB values 33, 117, 217 and HSL 213°, 74%, 49%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#2175D9#2175D9

HEX#2175D9

RGBrgb(33, 117, 217)

RGB (0–1)0.1294, 0.4588, 0.851

RGB percentages12.9%, 45.9%, 85.1%

HSLhsl(212.6, 73.6%, 49%)

HSV / HSBhsv(212.6, 84.8%, 85.1%)

CMYK84.8%, 46.1%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,192,857

CSS custom property--colour: #2175D9;

Brightness & contrast

Relative luminance0.18056WCAG 2.x, 0 is black and 1 is white

Perceived brightness117.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.61:1

Contrast with white4.55:1WCAG normal text: AA

Contrast with black4.61:1WCAG normal text: AA

Greyscale equivalent#6A6A6A

Inverted#DE8A26

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3D7FDDno red cones; affects about 1% of men; ΔE 5.7 from the original

Deuteranopia#026ED7no green cones; the most common form, about 1% of men; ΔE 4.4 from the original

Tritanopia#008D9Cno blue cones; rare, and affects men and women equally; ΔE 56.3 from the original

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

Contrast with white, large text4.55:1WCAG large text: AAA

Contrast with black, large text4.61:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 11.5 Cornflower blue · ΔE 15.4 Royal blue · ΔE 15.8 Slate blue · ΔE 24.1 Medium purple · ΔE 26.3 Dark slateblue · ΔE 28.1

Nearest named CSS colourDodgerblue (#1E90FF)ΔE 11.45, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#D98521

Analogous#21D1D9, #2921D9

Triadic#D92175, #75D921

Split complementary#D92921, #D1D921

Tetradic#D921D1, #D98521, #21D929

Tints, shades & saturation

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

Lighter +40%#CEE1F8

Lighter +30%#A2C6F1

Lighter +20%#76ABEA

Lighter +10%#4A90E3

Darker −10%#1A5DAD

Darker −20%#144580

Darker −30%#0D2D54

Darker −40%#061628

More saturated +25%#0272F8

Less saturated −25%#4078BA

Channel breakdown

R33

G117

B217

Red33 (12.9%)

Green117 (45.9%)

Blue217 (85.1%)

Hue212.61°

Saturation (HSL)73.6%

Lightness49.02%

Dominant channelBlue

Hex per channelR 21 · G 75 · B D9

Keep nerding

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#2175D9

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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