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Colour

#331F76

  • #331F76
  • Blue
  • Dark
  • Nearest: Midnight blue

#331F76 is a blue with RGB values 51, 31, 118 and HSL 254°, 58%, 29%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#331F76#331F76
HEX#331F76
RGBrgb(51, 31, 118)
RGB (0–1)0.2, 0.1216, 0.4627
RGB percentages20%, 12.2%, 46.3%
HSLhsl(253.8, 58.4%, 29.2%)
HSV / HSBhsv(253.8, 73.7%, 46.3%)
CMYK56.8%, 73.7%, 0%, 53.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,350,390
CSS custom property--colour: #331F76;

Brightness & contrast

Relative luminance0.02992WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.14:1
Contrast with white13.14:1WCAG normal text: AAA
Contrast with black1.6:1WCAG normal text: Fail
Greyscale equivalent#2A2A2A
Inverted#CCE089

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003379no red cones; affects about 1% of men; ΔE 18.7 from the original
Deuteranopia#002E74no green cones; the most common form, about 1% of men; ΔE 17.1 from the original
Tritanopia#163648no blue cones; rare, and affects men and women equally; ΔE 50.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.14:1WCAG large text: AAA
Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 5.5Dark slateblue · ΔE 14Rebecca purple · ΔE 15.9Indigo · ΔE 19.3Navy · ΔE 23.9Slate blue · ΔE 27.8
Nearest named CSS colourMidnight blue (#191970)ΔE 5.5, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#62761F
Analogous#1F3776, #5E1F76
Triadic#76331F, #1F7633
Split complementary#765F1F, #36761F
Tetradic#761F37, #62761F, #1F765E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9883DE
Lighter +30%#765AD4
Lighter +20%#5634C7
Lighter +10%#442A9E
Darker −10%#22144E
Darker −20%#100A25
Darker −30%#000000
Darker −40%#000000
More saturated +25%#290C89
Less saturated −25%#3D3263

Channel breakdown

R51
G31
B118
Red51 (20%)
Green31 (12.2%)
Blue118 (46.3%)
Hue253.79°
Saturation (HSL)58.39%
Lightness29.22%
Dominant channelBlue
Hex per channelR 33 · G 1F · B 76

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Every value on this page was computed from “331f76” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.