Colour

#1B1AB3

#1B1AB3
Blue
Dark
Nearest: Dark blue

#1B1AB3 is a blue with RGB values 27, 26, 179 and HSL 240°, 75%, 40%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#1B1AB3#1B1AB3

HEX#1B1AB3

RGBrgb(27, 26, 179)

RGB (0–1)0.1059, 0.102, 0.702

RGB percentages10.6%, 10.2%, 70.2%

HSLhsl(240.4, 74.6%, 40.2%)

HSV / HSBhsv(240.4, 85.5%, 70.2%)

CMYK84.9%, 85.5%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,776,307

CSS custom property--colour: #1B1AB3;

Brightness & contrast

Relative luminance0.04226WCAG 2.x, 0 is black and 1 is white

Perceived brightness65.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.38:1

Contrast with white11.38:1WCAG normal text: AAA

Contrast with black1.85:1WCAG normal text: Fail

Greyscale equivalent#252525

Inverted#E4E54C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0042B7no red cones; affects about 1% of men; ΔE 26.4 from the original

Deuteranopia#0032B1no green cones; the most common form, about 1% of men; ΔE 16.5 from the original

Tritanopia#004E6Ano blue cones; rare, and affects men and women equally; ΔE 83.9 from the original

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

Contrast with white, large text11.38:1WCAG large text: AAA

Contrast with black, large text1.85:1WCAG large text: Fail

Named colours

Dark blue · ΔE 13.1 Navy · ΔE 17.8 Medium blue · ΔE 20 Indigo · ΔE 24.1 Blue violet · ΔE 24.4 Dark orchid · ΔE 28

Nearest named CSS colourDark blue (#00008B)ΔE 13.11, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B2B31A

Analogous#1A66B3, #681AB3

Triadic#B31B1A, #1AB31B

Split complementary#B3671A, #66B31A

Tetradic#B31A66, #B2B31A, #1AB367

Tints, shades & saturation

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

Lighter +40%#A7A7F2

Lighter +30%#7B7AEC

Lighter +20%#4F4EE5

Lighter +10%#2221DF

Darker −10%#141486

Darker −20%#0E0D5A

Darker −30%#07072D

Darker −40%#000001

More saturated +25%#0200CD

Less saturated −25%#343499

Channel breakdown

R27

G26

B179

Red27 (10.6%)

Green26 (10.2%)

Blue179 (70.2%)

Hue240.39°

Saturation (HSL)74.63%

Lightness40.2%

Dominant channelBlue

Hex per channelR 1B · G 1A · B B3

Keep nerding

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

#1B1AB3

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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