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Recognised as Colour

#2B5C78

  • #2B5C78
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2B5C78 is a blue with RGB values 43, 92, 120 and HSL 202°, 47%, 32%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2B5C78#2B5C78
HEX#2B5C78
RGBrgb(43, 92, 120)
RGB (0–1)0.1686, 0.3608, 0.4706
RGB percentages16.9%, 36.1%, 47.1%
HSLhsl(201.8, 47.2%, 32%)
HSV / HSBhsv(201.8, 64.2%, 47.1%)
CMYK64.2%, 23.3%, 0%, 52.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,841,720
CSS custom property--colour: #2B5C78;

Brightness & contrast

Relative luminance0.09524WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.23:1
Contrast with white7.23:1WCAG normal text: AAA
Contrast with black2.9:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#D4A387

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4F5B79no red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#445478no green cones; the most common form, about 1% of men; ΔE 11.4 from the original
Tritanopia#006365no blue cones; rare, and affects men and women equally; ΔE 20.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.23:1WCAG large text: AAA
Contrast with black, large text2.9:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.5Steel blue · ΔE 19.5Slate grey · ΔE 19.5Light slate grey · ΔE 21.9Dim grey · ΔE 23.2Teal · ΔE 27.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.51, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#78472B
Analogous#2B786D, #2B3678
Triadic#782B5C, #5C782B
Split complementary#782B36, #786D2B
Tetradic#6D2B78, #78472B, #36782B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#96C1D9
Lighter +30%#70AACC
Lighter +20%#4B94BE
Lighter +10%#38799E
Darker −10%#1E3F52
Darker −20%#10222D
Darker −30%#030607
Darker −40%#000000
More saturated +25%#17628C
Less saturated −25%#3F5664

Channel breakdown

R43
G92
B120
Red43 (16.9%)
Green92 (36.1%)
Blue120 (47.1%)
Hue201.82°
Saturation (HSL)47.24%
Lightness31.96%
Dominant channelBlue
Hex per channelR 2B · G 5C · B 78

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Every value on this page was computed from “2b5c78” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.