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Recognised as Colour

#2F304D

  • #2F304D
  • Blue
  • Dark
  • Nearest: Dark slate grey

#2F304D is a blue with RGB values 47, 48, 77 and HSL 238°, 24%, 24%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#2F304D#2F304D
HEX#2F304D
RGBrgb(47, 48, 77)
RGB (0–1)0.1843, 0.1882, 0.302
RGB percentages18.4%, 18.8%, 30.2%
HSLhsl(238, 24.2%, 24.3%)
HSV / HSBhsv(238, 39%, 30.2%)
CMYK39%, 37.7%, 0%, 69.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,092,557
CSS custom property--colour: #2F304D;

Brightness & contrast

Relative luminance0.03254WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.72:1
Contrast with white12.72:1WCAG normal text: AAA
Contrast with black1.65:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#D0CFB2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#27344Eno red cones; affects about 1% of men; ΔE 5 from the original
Deuteranopia#26324Cno green cones; the most common form, about 1% of men; ΔE 4.6 from the original
Tritanopia#27353Bno blue cones; rare, and affects men and women equally; ΔE 17.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.72:1WCAG large text: AAA
Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 26.2Black · ΔE 28.8Dim grey · ΔE 30.5Dark slateblue · ΔE 31.8Slate grey · ΔE 34.1Steel blue · ΔE 36.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 26.24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4D4C2F
Analogous#2F3F4D, #3D2F4D
Triadic#4D2F30, #304D2F
Split complementary#4D3D2F, #3F4D2F
Tetradic#4D2F3F, #4D4C2F, #2F4D3D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8E8FBA
Lighter +30%#6E70A7
Lighter +20%#56578C
Lighter +10%#42446D
Darker −10%#1C1C2D
Darker −20%#08090E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#1F225D
Less saturated −25%#3E3E3E

Channel breakdown

R47
G48
B77
Red47 (18.4%)
Green48 (18.8%)
Blue77 (30.2%)
Hue238°
Saturation (HSL)24.19%
Lightness24.31%
Dominant channelBlue
Hex per channelR 2F · G 30 · B 4D

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Every value on this page was computed from “2f304d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.