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Recognised as Colour

#37709B

  • #37709B
  • Blue
  • Dark
  • Nearest: Steel blue

#37709B is a blue with RGB values 55, 112, 155 and HSL 206°, 48%, 41%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#37709B#37709B
HEX#37709B
RGBrgb(55, 112, 155)
RGB (0–1)0.2157, 0.4392, 0.6078
RGB percentages21.6%, 43.9%, 60.8%
HSLhsl(205.8, 47.6%, 41.2%)
HSV / HSBhsv(205.8, 64.5%, 60.8%)
CMYK64.5%, 27.7%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,633,307
CSS custom property--colour: #37709B;

Brightness & contrast

Relative luminance0.14767WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.31:1
Contrast with white5.31:1WCAG normal text: AA
Contrast with black3.95:1WCAG normal text: Fail
Greyscale equivalent#676767
Inverted#C88F64

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5D719Dno red cones; affects about 1% of men; ΔE 9.8 from the original
Deuteranopia#4F679Ano green cones; the most common form, about 1% of men; ΔE 10.8 from the original
Tritanopia#007A7Fno blue cones; rare, and affects men and women equally; ΔE 27.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.31:1WCAG large text: AAA
Contrast with black, large text3.95:1WCAG large text: AA

Named colours

Steel blue · ΔE 7.9Slate grey · ΔE 19.9Light slate grey · ΔE 20.8Dim grey · ΔE 29.3Dark slate grey · ΔE 29.6Cornflower blue · ΔE 29.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 7.93, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9B6237
Analogous#379B94, #373E9B
Triadic#9B3770, #709B37
Split complementary#9B373E, #9B9437
Tetradic#94379B, #9B6237, #3E9B37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8D2E6
Lighter +30%#93BAD9
Lighter +20%#6DA3CB
Lighter +10%#478BBE
Darker −10%#2A5575
Darker −20%#1C3A50
Darker −30%#0F1E2A
Darker −40%#020304
More saturated +25%#1D74B5
Less saturated −25%#516C81

Channel breakdown

R55
G112
B155
Red55 (21.6%)
Green112 (43.9%)
Blue155 (60.8%)
Hue205.8°
Saturation (HSL)47.62%
Lightness41.18%
Dominant channelBlue
Hex per channelR 37 · G 70 · B 9B

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Every value on this page was computed from “37709b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.