Recognised as Colour

#310D58

#310D58
Violet
Dark
Nearest: Midnight blue

#310D58 is a violet with RGB values 49, 13, 88 and HSL 269°, 74%, 20%. It is a dark colour, so white text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#310D58#310D58

HEX#310D58

RGBrgb(49, 13, 88)

RGB (0–1)0.1922, 0.051, 0.3451

RGB percentages19.2%, 5.1%, 34.5%

HSLhsl(268.8, 74.3%, 19.8%)

HSV / HSBhsv(268.8, 85.2%, 34.5%)

CMYK44.3%, 85.2%, 0%, 65.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,214,680

CSS custom property--colour: #310D58;

Brightness & contrast

Relative luminance0.01645WCAG 2.x, 0 is black and 1 is white

Perceived brightness41.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.8:1

Contrast with white15.8:1WCAG normal text: AAA

Contrast with black1.33:1WCAG normal text: Fail

Greyscale equivalent#1A1A1A

Inverted#CEF2A7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#00225Ano red cones; affects about 1% of men; ΔE 19.8 from the original

Deuteranopia#002257no green cones; the most common form, about 1% of men; ΔE 21.3 from the original

Tritanopia#282233no blue cones; rare, and affects men and women equally; ΔE 38.2 from the original

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

Contrast with white, large text15.8:1WCAG large text: AAA

Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 12.5 Dark slateblue · ΔE 19.5 Rebecca purple · ΔE 23.5 Indigo · ΔE 24.9 Purple · ΔE 30 Navy · ΔE 30.5

Nearest named CSS colourMidnight blue (#191970)ΔE 12.51, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#34580D

Analogous#0D0F58, #560D58

Triadic#58310D, #0D5831

Split complementary#58570D, #0E580D

Tetradic#580D0F, #34580D, #0D5856

Tints, shades & saturation

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

Lighter +40%#954CE5

Lighter +30%#7B21DD

Lighter +20%#621AB1

Lighter +10%#4A1484

Darker −10%#18062C

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#300065

Less saturated −25%#321A4B

Channel breakdown

R49

G13

B88

Red49 (19.2%)

Green13 (5.1%)

Blue88 (34.5%)

Hue268.8°

Saturation (HSL)74.26%

Lightness19.8%

Dominant channelBlue

Hex per channelR 31 · G 0D · B 58

Keep nerding

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

#310D58

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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