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Recognised as Colour

#2F256B

  • #2F256B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2F256B is a blue with RGB values 47, 37, 107 and HSL 249°, 49%, 28%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2F256B#2F256B
HEX#2F256B
RGBrgb(47, 37, 107)
RGB (0–1)0.1843, 0.1451, 0.4196
RGB percentages18.4%, 14.5%, 42%
HSLhsl(248.6, 48.6%, 28.2%)
HSV / HSBhsv(248.6, 65.4%, 42%)
CMYK56.1%, 65.4%, 0%, 58%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,089,771
CSS custom property--colour: #2F256B;

Brightness & contrast

Relative luminance0.02989WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.14:1
Contrast with white13.14:1WCAG normal text: AAA
Contrast with black1.6:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#D0DA94

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00326Dno red cones; affects about 1% of men; ΔE 14.9 from the original
Deuteranopia#002E6Ano green cones; the most common form, about 1% of men; ΔE 13.2 from the original
Tritanopia#163644no blue cones; rare, and affects men and women equally; ΔE 42.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.14:1WCAG large text: AAA
Contrast with black, large text1.6:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11.2Midnight blue · ΔE 12.5Rebecca purple · ΔE 22.9Indigo · ΔE 29.6Slate blue · ΔE 33Navy · ΔE 34.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.15, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#616B25
Analogous#253E6B, #52256B
Triadic#6B2F25, #256B2F
Split complementary#6B5225, #3E6B25
Tetradic#6B253E, #616B25, #256B52

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9287D5
Lighter +30%#7061C8
Lighter +20%#503FB7
Lighter +10%#403291
Darker −10%#1E1845
Darker −20%#0E0B1F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#22137D
Less saturated −25%#3C3759

Channel breakdown

R47
G37
B107
Red47 (18.4%)
Green37 (14.5%)
Blue107 (42%)
Hue248.57°
Saturation (HSL)48.61%
Lightness28.24%
Dominant channelBlue
Hex per channelR 2F · G 25 · B 6B

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Every value on this page was computed from “2f256b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.