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Recognised as Colour

#1C1447

  • #1C1447
  • Blue
  • Dark
  • Nearest: Midnight blue

#1C1447 is a blue with RGB values 28, 20, 71 and HSL 249°, 56%, 18%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1C1447#1C1447
HEX#1C1447
RGBrgb(28, 20, 71)
RGB (0–1)0.1098, 0.0784, 0.2784
RGB percentages11%, 7.8%, 27.8%
HSLhsl(249.4, 56%, 17.8%)
HSV / HSBhsv(249.4, 71.8%, 27.8%)
CMYK60.6%, 71.8%, 0%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,840,199
CSS custom property--colour: #1C1447;

Brightness & contrast

Relative luminance0.01202WCAG 2.x, 0 is black and 1 is white
Perceived brightness32.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.93:1
Contrast with white16.93:1WCAG normal text: AAA
Contrast with black1.24:1WCAG normal text: Fail
Greyscale equivalent#191919
Inverted#E3EBB8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001E49no red cones; affects about 1% of men; ΔE 11.4 from the original
Deuteranopia#001B46no green cones; the most common form, about 1% of men; ΔE 10.3 from the original
Tritanopia#09212Bno blue cones; rare, and affects men and women equally; ΔE 33.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.93:1WCAG large text: AAA
Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 22.7Dark slateblue · ΔE 23.9Rebecca purple · ΔE 35.7Black · ΔE 38.3Indigo · ΔE 39.9Purple · ΔE 43.5
Nearest named CSS colourMidnight blue (#191970)ΔE 22.67, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3F4714
Analogous#142547, #361447
Triadic#471C14, #14471C
Split complementary#473614, #254714
Tetradic#471425, #3F4714, #144736

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6A57D0
Lighter +30%#4B36BE
Lighter +20%#3B2A97
Lighter +10%#2C1F6F
Darker −10%#0C091F
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#140952
Less saturated −25%#241F3C

Channel breakdown

R28
G20
B71
Red28 (11%)
Green20 (7.8%)
Blue71 (27.8%)
Hue249.41°
Saturation (HSL)56.04%
Lightness17.84%
Dominant channelBlue
Hex per channelR 1C · G 14 · B 47

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Every value on this page was computed from “1c1447” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.