Colour

#1B0640

#1B0640
Violet
Dark
Nearest: Midnight blue

#1B0640 is a violet with RGB values 27, 6, 64 and HSL 262°, 83%, 14%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1B0640#1B0640

HEX#1B0640

RGBrgb(27, 6, 64)

RGB (0–1)0.1059, 0.0235, 0.251

RGB percentages10.6%, 2.4%, 25.1%

HSLhsl(261.7, 82.9%, 13.7%)

HSV / HSBhsv(261.7, 90.6%, 25.1%)

CMYK57.8%, 90.6%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,771,072

CSS custom property--colour: #1B0640;

Brightness & contrast

Relative luminance0.00733WCAG 2.x, 0 is black and 1 is white

Perceived brightness26.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.31:1

Contrast with white18.31:1WCAG normal text: AAA

Contrast with black1.15:1WCAG normal text: Fail

Greyscale equivalent#0F0F0F

Inverted#E4F9BF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001642no red cones; affects about 1% of men; ΔE 14.4 from the original

Deuteranopia#00133Fno green cones; the most common form, about 1% of men; ΔE 13.4 from the original

Tritanopia#0E1723no blue cones; rare, and affects men and women equally; ΔE 34.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.31:1WCAG large text: AAA

Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 20.4 Dark slateblue · ΔE 26.1 Rebecca purple · ΔE 34.5 Indigo · ΔE 35.8 Navy · ΔE 39.3 Purple · ΔE 40.3

Nearest named CSS colourMidnight blue (#191970)ΔE 20.41, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2B4006

Analogous#060E40, #380640

Triadic#401B06, #06401B

Split complementary#403806, #0E4006

Tetradic#40060E, #2B4006, #064038

Tints, shades & saturation

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

Lighter +40%#6E27EB

Lighter +30%#5613CC

Lighter +20%#420F9D

Lighter +10%#2F0A6F

Darker −10%#070211

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#190046

Less saturated −25%#1D0F37

Channel breakdown

R27

B64

Red27 (10.6%)

Green6 (2.4%)

Blue64 (25.1%)

Hue261.72°

Saturation (HSL)82.86%

Lightness13.73%

Dominant channelBlue

Hex per channelR 1B · G 06 · B 40

Keep nerding

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#1B0640

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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