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Colour

#37476A

  • #37476A
  • Blue
  • Dark
  • Nearest: Dark slate grey

#37476A is a blue with RGB values 55, 71, 106 and HSL 221°, 32%, 32%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#37476A#37476A
HEX#37476A
RGBrgb(55, 71, 106)
RGB (0–1)0.2157, 0.2784, 0.4157
RGB percentages21.6%, 27.8%, 41.6%
HSLhsl(221.2, 31.7%, 31.6%)
HSV / HSBhsv(221.2, 48.1%, 41.6%)
CMYK48.1%, 33%, 0%, 58.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,622,762
CSS custom property--colour: #37476A;

Brightness & contrast

Relative luminance0.06359WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.24:1
Contrast with white9.24:1WCAG normal text: AAA
Contrast with black2.27:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#C8B895

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3A4A6Bno red cones; affects about 1% of men; ΔE 1.9 from the original
Deuteranopia#354569no green cones; the most common form, about 1% of men; ΔE 1.1 from the original
Tritanopia#244E53no blue cones; rare, and affects men and women equally; ΔE 22.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.24:1WCAG large text: AAA
Contrast with black, large text2.27:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24.5Steel blue · ΔE 25.6Slate grey · ΔE 26.2Dim grey · ΔE 26.8Light slate grey · ΔE 28.7Dark slateblue · ΔE 29.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 24.5, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6A5A37
Analogous#37606A, #41376A
Triadic#6A3747, #476A37
Split complementary#6A4137, #616A37
Tetradic#6A3760, #6A5A37, #376A41

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A0AECD
Lighter +30%#7E91BC
Lighter +20%#5C75AB
Lighter +10%#485D8C
Darker −10%#263148
Darker −20%#141A27
Darker −30%#030405
Darker −40%#000000
More saturated +25%#23407E
Less saturated −25%#4B4E56

Channel breakdown

R55
G71
B106
Red55 (21.6%)
Green71 (27.8%)
Blue106 (41.6%)
Hue221.18°
Saturation (HSL)31.68%
Lightness31.57%
Dominant channelBlue
Hex per channelR 37 · G 47 · B 6A

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Every value on this page was computed from “37476a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.