Colour

#171BC4

#171BC4
Blue
Dark
Nearest: Medium blue

#171BC4 is a blue with RGB values 23, 27, 196 and HSL 239°, 79%, 43%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#171BC4#171BC4

HEX#171BC4

RGBrgb(23, 27, 196)

RGB (0–1)0.0902, 0.1059, 0.7686

RGB percentages9%, 10.6%, 76.9%

HSLhsl(238.6, 79%, 42.9%)

HSV / HSBhsv(238.6, 88.3%, 76.9%)

CMYK88.3%, 86.2%, 0%, 23.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,514,436

CSS custom property--colour: #171BC4;

Brightness & contrast

Relative luminance0.04952WCAG 2.x, 0 is black and 1 is white

Perceived brightness70.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.55:1

Contrast with white10.55:1WCAG normal text: AAA

Contrast with black1.99:1WCAG normal text: Fail

Greyscale equivalent#262626

Inverted#E8E43B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0048C8no red cones; affects about 1% of men; ΔE 28.9 from the original

Deuteranopia#0035C1no green cones; the most common form, about 1% of men; ΔE 17.4 from the original

Tritanopia#005574no blue cones; rare, and affects men and women equally; ΔE 90.5 from the original

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

Contrast with white, large text10.55:1WCAG large text: AAA

Contrast with black, large text1.99:1WCAG large text: Fail

Named colours

Medium blue · ΔE 12.4 Dark blue · ΔE 20.4 Blue violet · ΔE 21.5 Navy · ΔE 25.4 Dark violet · ΔE 26.1 Dark orchid · ΔE 29.7

Nearest named CSS colourMedium blue (#0000CD)ΔE 12.37, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C4C017

Analogous#1772C4, #6917C4

Triadic#C4171B, #1BC417

Split complementary#C46A17, #72C417

Tetradic#C41772, #C4C017, #17C469

Tints, shades & saturation

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

Lighter +40%#B1B3F6

Lighter +30%#8386F1

Lighter +20%#5659EB

Lighter +10%#282DE6

Darker −10%#121596

Darker −20%#0C0E69

Darker −30%#07083B

Darker −40%#02020D

More saturated +25%#0005DB

Less saturated −25%#3235A9

Channel breakdown

R23

G27

B196

Red23 (9%)

Green27 (10.6%)

Blue196 (76.9%)

Hue238.61°

Saturation (HSL)79%

Lightness42.94%

Dominant channelBlue

Hex per channelR 17 · G 1B · B C4

Keep nerding

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

#171BC4

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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