Nerdulator> put something in

Recognised as Colour

#310F66

  • #310F66
  • Violet
  • Dark
  • Nearest: Midnight blue

#310F66 is a violet with RGB values 49, 15, 102 and HSL 263°, 74%, 23%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#310F66#310F66
HEX#310F66
RGBrgb(49, 15, 102)
RGB (0–1)0.1922, 0.0588, 0.4
RGB percentages19.2%, 5.9%, 40%
HSLhsl(263.4, 74.4%, 22.9%)
HSV / HSBhsv(263.4, 85.3%, 40%)
CMYK52%, 85.3%, 0%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,215,206
CSS custom property--colour: #310F66;

Brightness & contrast

Relative luminance0.01954WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.1:1
Contrast with white15.1:1WCAG normal text: AAA
Contrast with black1.39:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#CEF099

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002768no red cones; affects about 1% of men; ΔE 20.5 from the original
Deuteranopia#002564no green cones; the most common form, about 1% of men; ΔE 20.9 from the original
Tritanopia#20283Bno blue cones; rare, and affects men and women equally; ΔE 46.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.1:1WCAG large text: AAA
Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 7.6Indigo · ΔE 18.3Rebecca purple · ΔE 18.9Dark slateblue · ΔE 19Navy · ΔE 23.4Purple · ΔE 27.5
Nearest named CSS colourMidnight blue (#191970)ΔE 7.62, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#44660F
Analogous#0F1966, #5C0F66
Triadic#66310F, #0F6631
Split complementary#665C0F, #19660F
Tetradic#660F19, #44660F, #0F665C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#915AE7
Lighter +30%#742EE0
Lighter +20%#5C1CBF
Lighter +10%#461692
Darker −10%#1C083A
Darker −20%#06020D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2E0075
Less saturated −25%#341E57

Channel breakdown

R49
G15
B102
Red49 (19.2%)
Green15 (5.9%)
Blue102 (40%)
Hue263.45°
Saturation (HSL)74.36%
Lightness22.94%
Dominant channelBlue
Hex per channelR 31 · G 0F · B 66

Keep nerding

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

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “310f66” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.