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Colour

#2D508C

  • #2D508C
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D508C is a blue with RGB values 45, 80, 140 and HSL 218°, 51%, 36%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2D508C#2D508C
HEX#2D508C
RGBrgb(45, 80, 140)
RGB (0–1)0.1765, 0.3137, 0.549
RGB percentages17.6%, 31.4%, 54.9%
HSLhsl(217.9, 51.4%, 36.3%)
HSV / HSBhsv(217.9, 67.9%, 54.9%)
CMYK67.9%, 42.9%, 0%, 45.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,969,740
CSS custom property--colour: #2D508C;

Brightness & contrast

Relative luminance0.08189WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.96:1
Contrast with white7.96:1WCAG normal text: AAA
Contrast with black2.64:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#D2AF73

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#34568Eno red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#254D8Bno green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#005E67no blue cones; rare, and affects men and women equally; ΔE 37.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.96:1WCAG large text: AAA
Contrast with black, large text2.64:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19Steel blue · ΔE 22.3Cornflower blue · ΔE 30.2Midnight blue · ΔE 32.5Slate grey · ΔE 33.9Light slate grey · ΔE 35.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.99, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8C692D
Analogous#2D808C, #392D8C
Triadic#8C2D50, #508C2D
Split complementary#8C3A2D, #808C2D
Tetradic#8C2D80, #8C692D, #2D8C39

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3BAE2
Lighter +30%#7D9DD5
Lighter +20%#5680C9
Lighter +10%#3966B3
Darker −10%#213A65
Darker −20%#14243F
Darker −30%#080E18
Darker −40%#000000
More saturated +25%#164AA3
Less saturated −25%#445675

Channel breakdown

R45
G80
B140
Red45 (17.6%)
Green80 (31.4%)
Blue140 (54.9%)
Hue217.89°
Saturation (HSL)51.35%
Lightness36.27%
Dominant channelBlue
Hex per channelR 2D · G 50 · B 8C

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Every value on this page was computed from “2d508c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.