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Recognised as Colour

#372E8A

  • #372E8A
  • Blue
  • Dark
  • Nearest: Midnight blue

#372E8A is a blue with RGB values 55, 46, 138 and HSL 246°, 50%, 36%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#372E8A#372E8A
HEX#372E8A
RGBrgb(55, 46, 138)
RGB (0–1)0.2157, 0.1804, 0.5412
RGB percentages21.6%, 18%, 54.1%
HSLhsl(245.9, 50%, 36.1%)
HSV / HSBhsv(245.9, 66.7%, 54.1%)
CMYK60.1%, 66.7%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,616,394
CSS custom property--colour: #372E8A;

Brightness & contrast

Relative luminance0.04601WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.94:1
Contrast with white10.94:1WCAG normal text: AAA
Contrast with black1.92:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#C8D175

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00408Dno red cones; affects about 1% of men; ΔE 17.5 from the original
Deuteranopia#003988no green cones; the most common form, about 1% of men; ΔE 14.3 from the original
Tritanopia#014557no blue cones; rare, and affects men and women equally; ΔE 55.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.94:1WCAG large text: AAA
Contrast with black, large text1.92:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 9.7Dark slateblue · ΔE 11.2Rebecca purple · ΔE 13.6Indigo · ΔE 20.8Slate blue · ΔE 21.6Navy · ΔE 24.9
Nearest named CSS colourMidnight blue (#191970)ΔE 9.72, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#818A2E
Analogous#2E538A, #652E8A
Triadic#8A372E, #2E8A37
Split complementary#8A652E, #538A2E
Tetradic#8A2E53, #818A2E, #2E8A65

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A9A3E1
Lighter +30%#867DD4
Lighter +20%#6257C7
Lighter +10%#463BB0
Darker −10%#282164
Darker −20%#19153D
Darker −30%#090817
Darker −40%#000000
More saturated +25%#2417A1
Less saturated −25%#494573

Channel breakdown

R55
G46
B138
Red55 (21.6%)
Green46 (18%)
Blue138 (54.1%)
Hue245.87°
Saturation (HSL)50%
Lightness36.08%
Dominant channelBlue
Hex per channelR 37 · G 2E · B 8A

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Every value on this page was computed from “372e8a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.