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Recognised as Colour

#37279A

  • #37279A
  • Blue
  • Dark
  • Nearest: Indigo

#37279A is a blue with RGB values 55, 39, 154 and HSL 248°, 60%, 38%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Indigo.

Colour values

#37279A#37279A
HEX#37279A
RGBrgb(55, 39, 154)
RGB (0–1)0.2157, 0.1529, 0.6039
RGB percentages21.6%, 15.3%, 60.4%
HSLhsl(248.3, 59.6%, 37.8%)
HSV / HSBhsv(248.3, 74.7%, 60.4%)
CMYK64.3%, 74.7%, 0%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,614,618
CSS custom property--colour: #37279A;

Brightness & contrast

Relative luminance0.04596WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.1 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#333333
Inverted#C8D865

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00419Dno red cones; affects about 1% of men; ΔE 21.5 from the original
Deuteranopia#003898no green cones; the most common form, about 1% of men; ΔE 16.6 from the original
Tritanopia#00475Eno blue cones; rare, and affects men and women equally; ΔE 65.8 from the original
Distinguishable without hueShifts in lightness toonever 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

Indigo · ΔE 13.4Navy · ΔE 14.8Rebecca purple · ΔE 14.9Dark blue · ΔE 16.6Midnight blue · ΔE 17.1Slate blue · ΔE 20.6
Nearest named CSS colourIndigo (#4B0082)ΔE 13.4, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A9A27
Analogous#27519A, #71279A
Triadic#9A3727, #279A37
Split complementary#9A7027, #519A27
Tetradic#9A2751, #8A9A27, #279A70

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEA5E8
Lighter +30%#8A7CDE
Lighter +20%#6553D4
Lighter +10%#4631C3
Darker −10%#281D71
Darker −20%#1A1249
Darker −30%#0B0820
Darker −40%#000000
More saturated +25%#260FB2
Less saturated −25%#483F82

Channel breakdown

R55
G39
B154
Red55 (21.6%)
Green39 (15.3%)
Blue154 (60.4%)
Hue248.35°
Saturation (HSL)59.59%
Lightness37.84%
Dominant channelBlue
Hex per channelR 37 · G 27 · B 9A

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Every value on this page was computed from “37279a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.