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Recognised as Colour

#18245E

  • #18245E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#18245E is a blue with RGB values 24, 36, 94 and HSL 230°, 59%, 23%. It is a dark colour, so white text on it reaches 14.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#18245E#18245E
HEX#18245E
RGBrgb(24, 36, 94)
RGB (0–1)0.0941, 0.1412, 0.3686
RGB percentages9.4%, 14.1%, 36.9%
HSLhsl(229.7, 59.3%, 23.1%)
HSV / HSBhsv(229.7, 74.5%, 36.9%)
CMYK74.5%, 61.7%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,582,174
CSS custom property--colour: #18245E;

Brightness & contrast

Relative luminance0.02264WCAG 2.x, 0 is black and 1 is white
Perceived brightness44 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.45:1
Contrast with white14.45:1WCAG normal text: AAA
Contrast with black1.45:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#E7DBA1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002D60no red cones; affects about 1% of men; ΔE 9 from the original
Deuteranopia#00265Dno green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#00323Dno blue cones; rare, and affects men and women equally; ΔE 37.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.45:1WCAG large text: AAA
Contrast with black, large text1.45:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.7Midnight blue · ΔE 19.9Rebecca purple · ΔE 32.3Indigo · ΔE 38.8Slate blue · ΔE 40.5Steel blue · ΔE 41.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.67, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5E5218
Analogous#18475E, #2F185E
Triadic#5E1824, #245E18
Split complementary#5E2F18, #475E18
Tetradic#5E1847, #5E5218, #185E2F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#697CD9
Lighter +30%#4159CE
Lighter +20%#2D43AF
Lighter +10%#223487
Darker −10%#0E1435
Darker −20%#03050D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#091A6D
Less saturated −25%#272E4F

Channel breakdown

R24
G36
B94
Red24 (9.4%)
Green36 (14.1%)
Blue94 (36.9%)
Hue229.71°
Saturation (HSL)59.32%
Lightness23.14%
Dominant channelBlue
Hex per channelR 18 · G 24 · B 5E

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Every value on this page was computed from “18245e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.