Colour

#173EE1

#173EE1
Blue
Dark
Nearest: Medium blue

#173EE1 is a blue with RGB values 23, 62, 225 and HSL 228°, 81%, 49%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#173EE1#173EE1

HEX#173EE1

RGBrgb(23, 62, 225)

RGB (0–1)0.0902, 0.2431, 0.8824

RGB percentages9%, 24.3%, 88.2%

HSLhsl(228.4, 81.5%, 48.6%)

HSV / HSBhsv(228.4, 89.8%, 88.2%)

CMYK89.8%, 72.4%, 0%, 11.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,523,425

CSS custom property--colour: #173EE1;

Brightness & contrast

Relative luminance0.09064WCAG 2.x, 0 is black and 1 is white

Perceived brightness90.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.47:1

Contrast with white7.47:1WCAG normal text: AAA

Contrast with black2.81:1WCAG normal text: Fail

Greyscale equivalent#414141

Inverted#E8C11E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#005FE6no red cones; affects about 1% of men; ΔE 23.4 from the original

Deuteranopia#004BDEno green cones; the most common form, about 1% of men; ΔE 11.3 from the original

Tritanopia#006E8Cno blue cones; rare, and affects men and women equally; ΔE 88.9 from the original

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

Contrast with white, large text7.47:1WCAG large text: AAA

Contrast with black, large text2.81:1WCAG large text: Fail

Named colours

Medium blue · ΔE 22 Blue violet · ΔE 23.3 Medium slateblue · ΔE 26.4 Dark blue · ΔE 26.6 Dark orchid · ΔE 29.9 Dark violet · ΔE 30.5

Nearest named CSS colourMedium blue (#0000CD)ΔE 21.99, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#E1BA17

Analogous#17A3E1, #5517E1

Triadic#E1173E, #3EE117

Split complementary#E15517, #A3E117

Tetradic#E117A3, #E1BA17, #17E155

Tints, shades & saturation

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

Lighter +40%#CAD3FA

Lighter +30%#9CADF5

Lighter +20%#6E87F0

Lighter +10%#4061EB

Darker −10%#1231B3

Darker −20%#0E2484

Darker −30%#091856

Darker −40%#040B28

More saturated +25%#0030F8

Less saturated −25%#3651C2

Channel breakdown

R23

G62

B225

Red23 (9%)

Green62 (24.3%)

Blue225 (88.2%)

Hue228.42°

Saturation (HSL)81.45%

Lightness48.63%

Dominant channelBlue

Hex per channelR 17 · G 3E · B E1

Keep nerding

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

#173EE1

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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