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Recognised as Colour

#1F013D

  • #1F013D
  • Violet
  • Dark
  • Nearest: Midnight blue

#1F013D is a violet with RGB values 31, 1, 61 and HSL 270°, 97%, 12%. It is a dark colour, so white text on it reaches 18.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1F013D#1F013D
HEX#1F013D
RGBrgb(31, 1, 61)
RGB (0–1)0.1216, 0.0039, 0.2392
RGB percentages12.2%, 0.4%, 23.9%
HSLhsl(270, 96.8%, 12.2%)
HSV / HSBhsv(270, 98.4%, 23.9%)
CMYK49.2%, 98.4%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,031,933
CSS custom property--colour: #1F013D;

Brightness & contrast

Relative luminance0.0065WCAG 2.x, 0 is black and 1 is white
Perceived brightness26.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.58:1
Contrast with white18.58:1WCAG normal text: AAA
Contrast with black1.13:1WCAG normal text: Fail
Greyscale equivalent#0C0C0C
Inverted#E0FEC2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00133Fno red cones; affects about 1% of men; ΔE 15.9 from the original
Deuteranopia#00123Cno green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#171220no blue cones; rare, and affects men and women equally; ΔE 32.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.58:1WCAG large text: AAA
Contrast with black, large text1.13:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 21.1Dark slateblue · ΔE 27.3Rebecca purple · ΔE 34.4Indigo · ΔE 35Purple · ΔE 38.8Navy · ΔE 39
Nearest named CSS colourMidnight blue (#191970)ΔE 21.06, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F3D01
Analogous#01013D, #3D013D
Triadic#3D1F01, #013D1F
Split complementary#3D3D01, #013D01
Tetradic#3D0101, #1F3D01, #013D3D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#850FFB
Lighter +30%#6C03D4
Lighter +20%#5203A1
Lighter +10%#39026F
Darker −10%#06000B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F003E
Less saturated −25%#1F0935

Channel breakdown

R31
G1
B61
Red31 (12.2%)
Green1 (0.4%)
Blue61 (23.9%)
Hue270°
Saturation (HSL)96.77%
Lightness12.16%
Dominant channelBlue
Hex per channelR 1F · G 01 · B 3D

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Every value on this page was computed from “1f013d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.