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Recognised as Colour

#281F46

  • #281F46
  • Blue
  • Dark
  • Nearest: Dark slateblue

#281F46 is a blue with RGB values 40, 31, 70 and HSL 254°, 39%, 20%. It is a dark colour, so white text on it reaches 15.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#281F46#281F46
HEX#281F46
RGBrgb(40, 31, 70)
RGB (0–1)0.1569, 0.1216, 0.2745
RGB percentages15.7%, 12.2%, 27.5%
HSLhsl(253.8, 38.6%, 19.8%)
HSV / HSBhsv(253.8, 55.7%, 27.5%)
CMYK42.9%, 55.7%, 0%, 72.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,629,446
CSS custom property--colour: #281F46;

Brightness & contrast

Relative luminance0.01873WCAG 2.x, 0 is black and 1 is white
Perceived brightness40 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.28:1
Contrast with white15.28:1WCAG normal text: AAA
Contrast with black1.37:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#D7E0B9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#102647no red cones; affects about 1% of men; ΔE 10.9 from the original
Deuteranopia#112445no green cones; the most common form, about 1% of men; ΔE 10.1 from the original
Tritanopia#20272Fno blue cones; rare, and affects men and women equally; ΔE 23.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.28:1WCAG large text: AAA
Contrast with black, large text1.37:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 27.1Midnight blue · ΔE 31.2Black · ΔE 31.4Dark slate grey · ΔE 37.1Dim grey · ΔE 40.6Rebecca purple · ΔE 40.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 27.06, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3D461F
Analogous#1F2A46, #3B1F46
Triadic#46281F, #1F4628
Split complementary#463B1F, #2A461F
Tetradic#461F2A, #3D461F, #1F463B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8371C0
Lighter +30%#654EB0
Lighter +20%#503E8D
Lighter +10%#3C2F69
Darker −10%#140F23
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#211253
Less saturated −25%#2F2C39

Channel breakdown

R40
G31
B70
Red40 (15.7%)
Green31 (12.2%)
Blue70 (27.5%)
Hue253.85°
Saturation (HSL)38.61%
Lightness19.8%
Dominant channelBlue
Hex per channelR 28 · G 1F · B 46

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Every value on this page was computed from “281f46” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.