Colour

#1181BD

#1181BD
Blue
Dark
Nearest: Steel blue

#1181BD is a blue with RGB values 17, 129, 189 and HSL 201°, 83%, 40%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#1181BD#1181BD

HEX#1181BD

RGBrgb(17, 129, 189)

RGB (0–1)0.0667, 0.5059, 0.7412

RGB percentages6.7%, 50.6%, 74.1%

HSLhsl(200.9, 83.5%, 40.4%)

HSV / HSBhsv(200.9, 91%, 74.1%)

CMYK91%, 31.7%, 0%, 25.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,147,325

CSS custom property--colour: #1181BD;

Brightness & contrast

Relative luminance0.19494WCAG 2.x, 0 is black and 1 is white

Perceived brightness118 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.9:1

Contrast with white4.29:1WCAG normal text: Fail

Contrast with black4.9:1WCAG normal text: AA

Greyscale equivalent#6E6E6E

Inverted#EE7E42

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6482C0no red cones; affects about 1% of men; ΔE 14 from the original

Deuteranopia#4D74BCno green cones; the most common form, about 1% of men; ΔE 15.5 from the original

Tritanopia#009096no blue cones; rare, and affects men and women equally; ΔE 35.4 from the original

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

Contrast with white, large text4.29:1WCAG large text: AA

Contrast with black, large text4.9:1WCAG large text: AAA

Named colours

Steel blue · ΔE 7.7 Cornflower blue · ΔE 21.7 Deep skyblue · ΔE 24.1 Light slate grey · ΔE 29 Slate grey · ΔE 29.2 Dodgerblue · ΔE 30.4

Nearest named CSS colourSteel blue (#4682B4)ΔE 7.73, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BD4D11

Analogous#11BDA3, #112BBD

Triadic#BD1181, #81BD11

Split complementary#BD112B, #BDA311

Tetradic#A311BD, #BD4D11, #2BBD11

Tints, shades & saturation

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

Lighter +40%#A3DAF7

Lighter +30%#74C7F3

Lighter +20%#46B3EE

Lighter +10%#17A0EA

Darker −10%#0D618E

Darker −20%#09415F

Darker −30%#042131

Darker −40%#000102

More saturated +25%#0086CE

Less saturated −25%#2B79A3

Channel breakdown

R17

G129

B189

Red17 (6.7%)

Green129 (50.6%)

Blue189 (74.1%)

Hue200.93°

Saturation (HSL)83.5%

Lightness40.39%

Dominant channelBlue

Hex per channelR 11 · G 81 · B BD

Keep nerding

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#1181BD

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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