Colour

#1741AC

#1741AC
Blue
Dark
Nearest: Slate blue

#1741AC is a blue with RGB values 23, 65, 172 and HSL 223°, 76%, 38%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#1741AC#1741AC

HEX#1741AC

RGBrgb(23, 65, 172)

RGB (0–1)0.0902, 0.2549, 0.6745

RGB percentages9%, 25.5%, 67.5%

HSLhsl(223.1, 76.4%, 38.2%)

HSV / HSBhsv(223.1, 86.6%, 67.5%)

CMYK86.6%, 62.2%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,524,140

CSS custom property--colour: #1741AC;

Brightness & contrast

Relative luminance0.06941WCAG 2.x, 0 is black and 1 is white

Perceived brightness77.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.79:1

Contrast with white8.79:1WCAG normal text: AAA

Contrast with black2.39:1WCAG normal text: Fail

Greyscale equivalent#404040

Inverted#E8BE53

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0052B0no red cones; affects about 1% of men; ΔE 13 from the original

Deuteranopia#0044AAno green cones; the most common form, about 1% of men; ΔE 4.2 from the original

Tritanopia#005D70no blue cones; rare, and affects men and women equally; ΔE 62.1 from the original

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

Contrast with white, large text8.79:1WCAG large text: AAA

Contrast with black, large text2.39:1WCAG large text: Fail

Named colours

Slate blue · ΔE 16.1 Royal blue · ΔE 16.8 Dark slateblue · ΔE 18.9 Midnight blue · ΔE 19.8 Rebecca purple · ΔE 20.2 Medium slateblue · ΔE 24.7

Nearest named CSS colourSlate blue (#6A5ACD)ΔE 16.11, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#AC8217

Analogous#178CAC, #3717AC

Triadic#AC1741, #41AC17

Split complementary#AC3817, #8BAC17

Tetradic#AC178C, #AC8217, #17AC38

Tints, shades & saturation

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

Lighter +40%#9DB5F2

Lighter +30%#7093EC

Lighter +20%#4371E6

Lighter +10%#1D52D9

Darker −10%#11307F

Darker −20%#0B1F52

Darker −30%#050E25

Darker −40%#000000

More saturated +25%#0037C3

Less saturated −25%#2F4C94

Channel breakdown

R23

G65

B172

Red23 (9%)

Green65 (25.5%)

Blue172 (67.5%)

Hue223.09°

Saturation (HSL)76.41%

Lightness38.24%

Dominant channelBlue

Hex per channelR 17 · G 41 · B AC

Keep nerding

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#1741AC

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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