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Recognised as Colour

#18013D

  • #18013D
  • Violet
  • Dark
  • Nearest: Midnight blue

#18013D is a violet with RGB values 24, 1, 61 and HSL 263°, 97%, 12%. 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

#18013D#18013D
HEX#18013D
RGBrgb(24, 1, 61)
RGB (0–1)0.0941, 0.0039, 0.2392
RGB percentages9.4%, 0.4%, 23.9%
HSLhsl(263, 96.8%, 12.2%)
HSV / HSBhsv(263, 98.4%, 23.9%)
CMYK60.7%, 98.4%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,573,181
CSS custom property--colour: #18013D;

Brightness & contrast

Relative luminance0.00553WCAG 2.x, 0 is black and 1 is white
Perceived brightness24.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.91:1
Contrast with white18.91:1WCAG normal text: AAA
Contrast with black1.11:1WCAG normal text: Fail
Greyscale equivalent#0A0A0A
Inverted#E7FEC2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00123Fno red cones; affects about 1% of men; ΔE 13.4 from the original
Deuteranopia#000F3Cno green cones; the most common form, about 1% of men; ΔE 13.1 from the original
Tritanopia#0A1320no blue cones; rare, and affects men and women equally; ΔE 34.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.91:1WCAG large text: AAA
Contrast with black, large text1.11:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 20.6Dark slateblue · ΔE 27.5Rebecca purple · ΔE 35.3Indigo · ΔE 35.8Navy · ΔE 38.9Purple · ΔE 40.7
Nearest named CSS colourMidnight blue (#191970)ΔE 20.62, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#263D01
Analogous#01083D, #36013D
Triadic#3D1801, #013D18
Split complementary#3D3601, #083D01
Tetradic#3D0108, #263D01, #013D36

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#690FFB
Lighter +30%#5303D4
Lighter +20%#3F03A1
Lighter +10%#2C026F
Darker −10%#04000B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#18003E
Less saturated −25%#1A0935

Channel breakdown

R24
G1
B61
Red24 (9.4%)
Green1 (0.4%)
Blue61 (23.9%)
Hue263°
Saturation (HSL)96.77%
Lightness12.16%
Dominant channelBlue
Hex per channelR 18 · G 01 · B 3D

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Every value on this page was computed from “18013d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.