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Recognised as Colour

#273F61

  • #273F61
  • Blue
  • Dark
  • Nearest: Dark slate grey

#273F61 is a blue with RGB values 39, 63, 97 and HSL 215°, 43%, 27%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#273F61#273F61
HEX#273F61
RGBrgb(39, 63, 97)
RGB (0–1)0.1529, 0.2471, 0.3804
RGB percentages15.3%, 24.7%, 38%
HSLhsl(215.2, 42.6%, 26.7%)
HSV / HSBhsv(215.2, 59.8%, 38%)
CMYK59.8%, 35.1%, 0%, 62%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,572,129
CSS custom property--colour: #273F61;

Brightness & contrast

Relative luminance0.04849WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.66:1
Contrast with white10.66:1WCAG normal text: AAA
Contrast with black1.97:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#D8C09E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#314162no red cones; affects about 1% of men; ΔE 2.6 from the original
Deuteranopia#2A3C60no green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#01474Bno blue cones; rare, and affects men and women equally; ΔE 24.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.66:1WCAG large text: AAA
Contrast with black, large text1.97:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24.2Steel blue · ΔE 28.4Dim grey · ΔE 29.3Slate grey · ΔE 29.6Dark slateblue · ΔE 31Light slate grey · ΔE 32.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 24.19, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#614927
Analogous#275C61, #2C2761
Triadic#61273F, #3F6127
Split complementary#612C27, #5C6127
Tetradic#61275C, #614927, #27612C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#86A4CE
Lighter +30%#6188C0
Lighter +20%#446EAA
Lighter +10%#365785
Darker −10%#18273D
Darker −20%#0A1018
Darker −30%#000000
Darker −40%#000000
More saturated +25%#163C72
Less saturated −25%#384250

Channel breakdown

R39
G63
B97
Red39 (15.3%)
Green63 (24.7%)
Blue97 (38%)
Hue215.17°
Saturation (HSL)42.65%
Lightness26.67%
Dominant channelBlue
Hex per channelR 27 · G 3F · B 61

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Every value on this page was computed from “273f61” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.