Colour

#3371AA

#3371AA
Blue
Dark
Nearest: Steel blue

#3371AA is a blue with RGB values 51, 113, 170 and HSL 209°, 54%, 43%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3371AA#3371AA

HEX#3371AA

RGBrgb(51, 113, 170)

RGB (0–1)0.2, 0.4431, 0.6667

RGB percentages20%, 44.3%, 66.7%

HSLhsl(208.7, 53.8%, 43.3%)

HSV / HSBhsv(208.7, 70%, 66.7%)

CMYK70%, 33.5%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,371,434

CSS custom property--colour: #3371AA;

Brightness & contrast

Relative luminance0.15416WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.14:1

Contrast with white5.14:1WCAG normal text: AA

Contrast with black4.08:1WCAG normal text: Fail

Greyscale equivalent#686868

Inverted#CC8E55

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5874ACno red cones; affects about 1% of men; ΔE 7.8 from the original

Deuteranopia#4768A9no green cones; the most common form, about 1% of men; ΔE 9.4 from the original

Tritanopia#007F86no blue cones; rare, and affects men and women equally; ΔE 35.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text5.14:1WCAG large text: AAA

Contrast with black, large text4.08:1WCAG large text: AA

Named colours

Steel blue · ΔE 8.2 Cornflower blue · ΔE 22.8 Slate grey · ΔE 26.6 Light slate grey · ΔE 27 Dark slateblue · ΔE 31.5 Deep skyblue · ΔE 31.9

Nearest named CSS colourSteel blue (#4682B4)ΔE 8.18, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#AA6C33

Analogous#33AAA8, #3335AA

Triadic#AA3371, #71AA33

Split complementary#AA3335, #AAA833

Tetradic#A833AA, #AA6C33, #35AA33

Tints, shades & saturation

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

Lighter +40%#BED5EB

Lighter +30%#96BDE0

Lighter +20%#6FA4D4

Lighter +10%#488BC8

Darker −10%#275783

Darker −20%#1B3D5C

Darker −30%#102334

Darker −40%#04090D

More saturated +25%#1772C6

Less saturated −25%#4F708E

Channel breakdown

R51

G113

B170

Red51 (20%)

Green113 (44.3%)

Blue170 (66.7%)

Hue208.74°

Saturation (HSL)53.85%

Lightness43.33%

Dominant channelBlue

Hex per channelR 33 · G 71 · B AA

Keep nerding

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

#3371AA

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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