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Recognised as Colour

#180C54

  • #180C54
  • Blue
  • Dark
  • Nearest: Midnight blue

#180C54 is a blue with RGB values 24, 12, 84 and HSL 250°, 75%, 19%. It is a dark colour, so white text on it reaches 17.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#180C54#180C54
HEX#180C54
RGBrgb(24, 12, 84)
RGB (0–1)0.0941, 0.0471, 0.3294
RGB percentages9.4%, 4.7%, 32.9%
HSLhsl(250, 75%, 18.8%)
HSV / HSBhsv(250, 85.7%, 32.9%)
CMYK71.4%, 85.7%, 0%, 67.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,576,020
CSS custom property--colour: #180C54;

Brightness & contrast

Relative luminance0.01097WCAG 2.x, 0 is black and 1 is white
Perceived brightness32.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.22:1
Contrast with white17.22:1WCAG normal text: AAA
Contrast with black1.22:1WCAG normal text: Fail
Greyscale equivalent#141414
Inverted#E7F3AB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001E56no red cones; affects about 1% of men; ΔE 15.1 from the original
Deuteranopia#001853no green cones; the most common form, about 1% of men; ΔE 11.3 from the original
Tritanopia#002230no blue cones; rare, and affects men and women equally; ΔE 45.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.22:1WCAG large text: AAA
Contrast with black, large text1.22:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.8Dark slateblue · ΔE 21.3Rebecca purple · ΔE 27.5Indigo · ΔE 27.6Navy · ΔE 30Dark blue · ΔE 35.1
Nearest named CSS colourMidnight blue (#191970)ΔE 10.78, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#48540C
Analogous#0C2454, #3C0C54
Triadic#54180C, #0C5418
Split complementary#543C0C, #24540C
Tetradic#540C24, #48540C, #0C543C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6247E5
Lighter +30%#3E1FDA
Lighter +20%#3219AD
Lighter +10%#251281
Darker −10%#0B0627
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#100060
Less saturated −25%#201848

Channel breakdown

R24
G12
B84
Red24 (9.4%)
Green12 (4.7%)
Blue84 (32.9%)
Hue250°
Saturation (HSL)75%
Lightness18.82%
Dominant channelBlue
Hex per channelR 18 · G 0C · B 54

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Every value on this page was computed from “180c54” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.