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Recognised as Colour

#18477E

  • #18477E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#18477E is a blue with RGB values 24, 71, 126 and HSL 212°, 68%, 29%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#18477E#18477E
HEX#18477E
RGBrgb(24, 71, 126)
RGB (0–1)0.0941, 0.2784, 0.4941
RGB percentages9.4%, 27.8%, 49.4%
HSLhsl(212.4, 68%, 29.4%)
HSV / HSBhsv(212.4, 81%, 49.4%)
CMYK81%, 43.7%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,591,166
CSS custom property--colour: #18477E;

Brightness & contrast

Relative luminance0.06207WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.37:1
Contrast with white9.37:1WCAG normal text: AAA
Contrast with black2.24:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#E7B881

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2C4B80no red cones; affects about 1% of men; ΔE 3.4 from the original
Deuteranopia#19427Dno green cones; the most common form, about 1% of men; ΔE 4 from the original
Tritanopia#00545Cno blue cones; rare, and affects men and women equally; ΔE 34.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.37:1WCAG large text: AAA
Contrast with black, large text2.24:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.7Steel blue · ΔE 24.7Midnight blue · ΔE 32.9Slate grey · ΔE 34.8Cornflower blue · ΔE 35Dark slate grey · ΔE 36.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.66, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7E4F18
Analogous#187A7E, #1C187E
Triadic#7E1847, #477E18
Split complementary#7E1C18, #7A7E18
Tetradic#7E187A, #7E4F18, #187E1C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7CADE6
Lighter +30%#5192DE
Lighter +20%#2877D4
Lighter +10%#205FA9
Darker −10%#102F53
Darker −20%#081728
Darker −30%#000000
Darker −40%#000000
More saturated +25%#054691
Less saturated −25%#2B486B

Channel breakdown

R24
G71
B126
Red24 (9.4%)
Green71 (27.8%)
Blue126 (49.4%)
Hue212.35°
Saturation (HSL)68%
Lightness29.41%
Dominant channelBlue
Hex per channelR 18 · G 47 · B 7E

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Every value on this page was computed from “18477e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.