Nerdulator> put something in

Colour

#18184E

  • #18184E
  • Blue
  • Dark
  • Nearest: Midnight blue

#18184E is a blue with RGB values 24, 24, 78 and HSL 240°, 53%, 20%. It is a dark colour, so white text on it reaches 16.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#18184E#18184E
HEX#18184E
RGBrgb(24, 24, 78)
RGB (0–1)0.0941, 0.0941, 0.3059
RGB percentages9.4%, 9.4%, 30.6%
HSLhsl(240, 52.9%, 20%)
HSV / HSBhsv(240, 69.2%, 30.6%)
CMYK69.2%, 69.2%, 0%, 69.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,579,086
CSS custom property--colour: #18184E;

Brightness & contrast

Relative luminance0.01398WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.41:1
Contrast with white16.41:1WCAG normal text: AAA
Contrast with black1.28:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#E7E7B1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002250no red cones; affects about 1% of men; ΔE 10.4 from the original
Deuteranopia#001D4Dno green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#002630no blue cones; rare, and affects men and women equally; ΔE 36.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.41:1WCAG large text: AAA
Contrast with black, large text1.28:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 20.8Dark slateblue · ΔE 21.9Rebecca purple · ΔE 34.4Indigo · ΔE 38.9Black · ΔE 40.4Navy · ΔE 42.2
Nearest named CSS colourMidnight blue (#191970)ΔE 20.78, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4E4E18
Analogous#18334E, #33184E
Triadic#4E1818, #184E18
Split complementary#4E3318, #334E18
Tetradic#4E1833, #4E4E18, #184E33

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6363CF
Lighter +30%#3C3CC3
Lighter +20%#30309C
Lighter +10%#242475
Darker −10%#0C0C27
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0B0B5B
Less saturated −25%#252541

Channel breakdown

R24
G24
B78
Red24 (9.4%)
Green24 (9.4%)
Blue78 (30.6%)
Hue240°
Saturation (HSL)52.94%
Lightness20%
Dominant channelBlue
Hex per channelR 18 · G 18 · B 4E

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “18184e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.