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Recognised as Colour

#2D287D

  • #2D287D
  • Blue
  • Dark
  • Nearest: Midnight blue

#2D287D is a blue with RGB values 45, 40, 125 and HSL 244°, 52%, 32%. It is a dark colour, so white text on it reaches 12.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#2D287D#2D287D
HEX#2D287D
RGBrgb(45, 40, 125)
RGB (0–1)0.1765, 0.1569, 0.4902
RGB percentages17.6%, 15.7%, 49%
HSLhsl(243.5, 51.5%, 32.4%)
HSV / HSBhsv(243.5, 68%, 49%)
CMYK64%, 68%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,959,485
CSS custom property--colour: #2D287D;

Brightness & contrast

Relative luminance0.03556WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.27:1
Contrast with white12.27:1WCAG normal text: AAA
Contrast with black1.71:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#D2D782

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003880no red cones; affects about 1% of men; ΔE 15.1 from the original
Deuteranopia#00327Bno green cones; the most common form, about 1% of men; ΔE 12.7 from the original
Tritanopia#003E4Eno blue cones; rare, and affects men and women equally; ΔE 52.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.27:1WCAG large text: AAA
Contrast with black, large text1.71:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 7Dark slateblue · ΔE 10.8Rebecca purple · ΔE 17.2Indigo · ΔE 23Slate blue · ΔE 26.2Navy · ΔE 26.5
Nearest named CSS colourMidnight blue (#191970)ΔE 6.98, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#787D28
Analogous#284E7D, #57287D
Triadic#7D2D28, #287D2D
Split complementary#7D5728, #4E7D28
Tetradic#7D284E, #787D28, #287D57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9894DD
Lighter +30%#736ED0
Lighter +20%#4E47C4
Lighter +10%#3B34A4
Darker −10%#1F1C56
Darker −20%#110F30
Darker −30%#030309
Darker −40%#000000
More saturated +25%#1B1392
Less saturated −25%#3F3D68

Channel breakdown

R45
G40
B125
Red45 (17.6%)
Green40 (15.7%)
Blue125 (49%)
Hue243.53°
Saturation (HSL)51.52%
Lightness32.35%
Dominant channelBlue
Hex per channelR 2D · G 28 · B 7D

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Every value on this page was computed from “2d287d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.