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Recognised as Colour

#2D3377

  • #2D3377
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D3377 is a blue with RGB values 45, 51, 119 and HSL 235°, 45%, 32%. It is a dark colour, so white text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2D3377#2D3377
HEX#2D3377
RGBrgb(45, 51, 119)
RGB (0–1)0.1765, 0.2, 0.4667
RGB percentages17.6%, 20%, 46.7%
HSLhsl(235.1, 45.1%, 32.2%)
HSV / HSBhsv(235.1, 62.2%, 46.7%)
CMYK62.2%, 57.1%, 0%, 53.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,962,295
CSS custom property--colour: #2D3377;

Brightness & contrast

Relative luminance0.04257WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.34:1
Contrast with white11.34:1WCAG normal text: AAA
Contrast with black1.85:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#D2CC88

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#033D79no red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#003776no green cones; the most common form, about 1% of men; ΔE 8.9 from the original
Tritanopia#00434Fno blue cones; rare, and affects men and women equally; ΔE 43.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.34:1WCAG large text: AAA
Contrast with black, large text1.85:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 9.1Midnight blue · ΔE 17.5Rebecca purple · ΔE 25.5Slate blue · ΔE 31.8Indigo · ΔE 34.7Royal blue · ΔE 35.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 9.08, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#77712D
Analogous#2D5877, #4C2D77
Triadic#772D33, #33772D
Split complementary#774C2D, #58772D
Tetradic#772D58, #77712D, #2D774C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#989DD8
Lighter +30%#737ACA
Lighter +20%#4E57BC
Lighter +10%#3B439C
Darker −10%#1F2352
Darker −20%#11132D
Darker −30%#030308
Darker −40%#000000
More saturated +25%#19228B
Less saturated −25%#424462

Channel breakdown

R45
G51
B119
Red45 (17.6%)
Green51 (20%)
Blue119 (46.7%)
Hue235.14°
Saturation (HSL)45.12%
Lightness32.16%
Dominant channelBlue
Hex per channelR 2D · G 33 · B 77

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Every value on this page was computed from “2d3377” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.