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Recognised as Colour

#2D4577

  • #2D4577
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D4577 is a blue with RGB values 45, 69, 119 and HSL 221°, 45%, 32%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2D4577#2D4577
HEX#2D4577
RGBrgb(45, 69, 119)
RGB (0–1)0.1765, 0.2706, 0.4667
RGB percentages17.6%, 27.1%, 46.7%
HSLhsl(220.5, 45.1%, 32.2%)
HSV / HSBhsv(220.5, 62.2%, 46.7%)
CMYK62.2%, 42%, 0%, 53.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,966,903
CSS custom property--colour: #2D4577;

Brightness & contrast

Relative luminance0.06146WCAG 2.x, 0 is black and 1 is white
Perceived brightness70.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.42:1
Contrast with white9.42:1WCAG normal text: AAA
Contrast with black2.23:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#D2BA88

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2F4A79no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#254376no green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#005058no blue cones; rare, and affects men and women equally; ΔE 32.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.42:1WCAG large text: AAA
Contrast with black, large text2.23:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.4Steel blue · ΔE 25.5Slate grey · ΔE 32.6Midnight blue · ΔE 33.3Dark slate grey · ΔE 33.8Light slate grey · ΔE 34.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.36, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#775F2D
Analogous#2D6A77, #3A2D77
Triadic#772D45, #45772D
Split complementary#773A2D, #6A772D
Tetradic#772D6A, #775F2D, #2D773A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#98ADD8
Lighter +30%#738FCA
Lighter +20%#4E72BC
Lighter +10%#3B5A9C
Darker −10%#1F3052
Darker −20%#111A2D
Darker −30%#030508
Darker −40%#000000
More saturated +25%#193E8B
Less saturated −25%#424C62

Channel breakdown

R45
G69
B119
Red45 (17.6%)
Green69 (27.1%)
Blue119 (46.7%)
Hue220.54°
Saturation (HSL)45.12%
Lightness32.16%
Dominant channelBlue
Hex per channelR 2D · G 45 · B 77

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Every value on this page was computed from “2d4577” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.