Colour

#1C0039

#1C0039
Violet
Dark
Nearest: Midnight blue

#1C0039 is a violet with RGB values 28, 0, 57 and HSL 269°, 100%, 11%. It is a dark colour, so white text on it reaches 18.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1C0039#1C0039

HEX#1C0039

RGBrgb(28, 0, 57)

RGB (0–1)0.1098, 0, 0.2235

RGB percentages11%, 0%, 22.4%

HSLhsl(269.5, 100%, 11.2%)

HSV / HSBhsv(269.5, 100%, 22.4%)

CMYK50.9%, 100%, 0%, 77.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,835,065

CSS custom property--colour: #1C0039;

Brightness & contrast

Relative luminance0.00542WCAG 2.x, 0 is black and 1 is white

Perceived brightness24.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.95:1

Contrast with white18.95:1WCAG normal text: AAA

Contrast with black1.11:1WCAG normal text: Fail

Greyscale equivalent#0A0A0A

Inverted#E3FFC6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#00103Ano red cones; affects about 1% of men; ΔE 14.6 from the original

Deuteranopia#001038no green cones; the most common form, about 1% of men; ΔE 15.9 from the original

Tritanopia#15101Dno blue cones; rare, and affects men and women equally; ΔE 31 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.95:1WCAG large text: AAA

Contrast with black, large text1.11:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 23 Dark slateblue · ΔE 28.6 Rebecca purple · ΔE 36.5 Indigo · ΔE 37.4 Black · ΔE 40.6 Purple · ΔE 41.1

Nearest named CSS colourMidnight blue (#191970)ΔE 22.98, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1D3900

Analogous#000139, #380039

Triadic#391C00, #00391C

Split complementary#393800, #013900

Tetradic#390001, #1D3900, #003938

Tints, shades & saturation

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

Lighter +40%#8006FF

Lighter +30%#6700D2

Lighter +20%#4E009F

Lighter +10%#35006C

Darker −10%#030006

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1C0039

Less saturated −25%#1C0732

Channel breakdown

R28

B57

Red28 (11%)

Green0 (0%)

Blue57 (22.4%)

Hue269.47°

Saturation (HSL)100%

Lightness11.18%

Dominant channelBlue

Hex per channelR 1C · G 00 · B 39

Keep nerding

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#1C0039

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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