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Recognised as Colour

#2F4499

  • #2F4499
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2F4499 is a blue with RGB values 47, 68, 153 and HSL 228°, 53%, 39%. It is a dark colour, so white text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2F4499#2F4499
HEX#2F4499
RGBrgb(47, 68, 153)
RGB (0–1)0.1843, 0.2667, 0.6
RGB percentages18.4%, 26.7%, 60%
HSLhsl(228.1, 53%, 39.2%)
HSV / HSBhsv(228.1, 69.3%, 60%)
CMYK69.3%, 55.6%, 0%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,097,753
CSS custom property--colour: #2F4499;

Brightness & contrast

Relative luminance0.07038WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.72:1
Contrast with white8.72:1WCAG normal text: AAA
Contrast with black2.41:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#D0BB66

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00509Cno red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#004697no green cones; the most common form, about 1% of men; ΔE 6.6 from the original
Tritanopia#005867no blue cones; rare, and affects men and women equally; ΔE 51 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.72:1WCAG large text: AAA
Contrast with black, large text2.41:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 8.4Midnight blue · ΔE 19.1Rebecca purple · ΔE 21.6Slate blue · ΔE 21.7Royal blue · ΔE 23.3Medium purple · ΔE 27.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 8.45, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#99842F
Analogous#2F7999, #4F2F99
Triadic#992F44, #44992F
Split complementary#994F2F, #79992F
Tetradic#992F79, #99842F, #2F994F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEB9E6
Lighter +30%#8797DA
Lighter +20%#6076CE
Lighter +10%#3B55C0
Darker −10%#233372
Darker −20%#17214B
Darker −30%#0B1024
Darker −40%#000000
More saturated +25%#1635B2
Less saturated −25%#485380

Channel breakdown

R47
G68
B153
Red47 (18.4%)
Green68 (26.7%)
Blue153 (60%)
Hue228.11°
Saturation (HSL)53%
Lightness39.22%
Dominant channelBlue
Hex per channelR 2F · G 44 · B 99

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Every value on this page was computed from “2f4499” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.