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Recognised as Colour

#2D1881

  • #2D1881
  • Blue
  • Dark
  • Nearest: Midnight blue

#2D1881 is a blue with RGB values 45, 24, 129 and HSL 252°, 69%, 30%. It is a dark colour, so white text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#2D1881#2D1881
HEX#2D1881
RGBrgb(45, 24, 129)
RGB (0–1)0.1765, 0.0941, 0.5059
RGB percentages17.6%, 9.4%, 50.6%
HSLhsl(252, 68.6%, 30%)
HSV / HSBhsv(252, 81.4%, 50.6%)
CMYK65.1%, 81.4%, 0%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,955,393
CSS custom property--colour: #2D1881;

Brightness & contrast

Relative luminance0.02796WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.47:1
Contrast with white13.47:1WCAG normal text: AAA
Contrast with black1.56:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#D2E77E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003284no red cones; affects about 1% of men; ΔE 20.4 from the original
Deuteranopia#002B7Fno green cones; the most common form, about 1% of men; ΔE 17 from the original
Tritanopia#00374Cno blue cones; rare, and affects men and women equally; ΔE 60.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.47:1WCAG large text: AAA
Contrast with black, large text1.56:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.5Indigo · ΔE 11.8Navy · ΔE 13.8Rebecca purple · ΔE 16Dark blue · ΔE 17.8Dark slateblue · ΔE 22.3
Nearest named CSS colourMidnight blue (#191970)ΔE 10.49, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6C8118
Analogous#183781, #621881
Triadic#812D18, #18812D
Split complementary#816218, #388118
Tetradic#811837, #6C8118, #188162

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#937EE7
Lighter +30%#6F53DF
Lighter +20%#4B28D7
Lighter +10%#3C20AC
Darker −10%#1E1056
Darker −20%#0F082B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#220594
Less saturated −25%#382B6E

Channel breakdown

R45
G24
B129
Red45 (17.6%)
Green24 (9.4%)
Blue129 (50.6%)
Hue252°
Saturation (HSL)68.63%
Lightness30%
Dominant channelBlue
Hex per channelR 2D · G 18 · B 81

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Every value on this page was computed from “2d1881” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.