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Colour

#273BB7

  • #273BB7
  • Blue
  • Dark
  • Nearest: Slate blue

#273BB7 is a blue with RGB values 39, 59, 183 and HSL 232°, 65%, 44%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#273BB7#273BB7
HEX#273BB7
RGBrgb(39, 59, 183)
RGB (0–1)0.1529, 0.2314, 0.7176
RGB percentages15.3%, 23.1%, 71.8%
HSLhsl(231.7, 64.9%, 43.5%)
HSV / HSBhsv(231.7, 78.7%, 71.8%)
CMYK78.7%, 67.8%, 0%, 28.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,571,191
CSS custom property--colour: #273BB7;

Brightness & contrast

Relative luminance0.06978WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.77:1
Contrast with white8.77:1WCAG normal text: AAA
Contrast with black2.4:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#D8C448

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0052BBno red cones; affects about 1% of men; ΔE 17.9 from the original
Deuteranopia#0044B5no green cones; the most common form, about 1% of men; ΔE 9.3 from the original
Tritanopia#005D74no blue cones; rare, and affects men and women equally; ΔE 70.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.77:1WCAG large text: AAA
Contrast with black, large text2.4:1WCAG large text: Fail

Named colours

Slate blue · ΔE 16.6Royal blue · ΔE 19.7Medium slateblue · ΔE 20.8Rebecca purple · ΔE 20.9Dark blue · ΔE 21.5Navy · ΔE 21.5
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 16.62, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B7A327
Analogous#2783B7, #5B27B7
Triadic#B7273B, #3BB727
Split complementary#B75B27, #83B727
Tetradic#B72783, #B7A327, #27B75B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BAC1F0
Lighter +30%#909CE7
Lighter +20%#6676DE
Lighter +10%#3C51D5
Darker −10%#1E2D8D
Darker −20%#152063
Darker −30%#0C1239
Darker −40%#03050F
More saturated +25%#0B27D3
Less saturated −25%#434F9B

Channel breakdown

R39
G59
B183
Red39 (15.3%)
Green59 (23.1%)
Blue183 (71.8%)
Hue231.67°
Saturation (HSL)64.86%
Lightness43.53%
Dominant channelBlue
Hex per channelR 27 · G 3B · B B7

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Every value on this page was computed from “273bb7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.