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Recognised as Colour

#101A2B

  • #101A2B
  • Blue
  • Dark
  • Nearest: Black

#101A2B is a blue with RGB values 16, 26, 43 and HSL 218°, 46%, 12%. It is a dark colour, so white text on it reaches 17.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#101A2B#101A2B
HEX#101A2B
RGBrgb(16, 26, 43)
RGB (0–1)0.0627, 0.102, 0.1686
RGB percentages6.3%, 10.2%, 16.9%
HSLhsl(217.8, 45.8%, 11.6%)
HSV / HSBhsv(217.8, 62.8%, 16.9%)
CMYK62.8%, 39.5%, 0%, 83.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,055,275
CSS custom property--colour: #101A2B;

Brightness & contrast

Relative luminance0.01023WCAG 2.x, 0 is black and 1 is white
Perceived brightness26.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.43:1
Contrast with white17.43:1WCAG normal text: AAA
Contrast with black1.2:1WCAG normal text: Fail
Greyscale equivalent#191919
Inverted#EFE5D4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#131B2Cno red cones; affects about 1% of men; ΔE 0.9 from the original
Deuteranopia#10192Bno green cones; the most common form, about 1% of men; ΔE 1 from the original
Tritanopia#051E20no blue cones; rare, and affects men and women equally; ΔE 13.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.43:1WCAG large text: AAA
Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Black · ΔE 15.9Dark slate grey · ΔE 27.4Dim grey · ΔE 37.5Dark slateblue · ΔE 43.8Slate grey · ΔE 43.9Gray · ΔE 46.3
Nearest named CSS colourBlack (#000000)ΔE 15.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#2B2110
Analogous#10272B, #14102B
Triadic#2B101A, #1A2B10
Split complementary#2B1310, #272B10
Tetradic#2B1027, #2B2110, #102B13

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4B75BC
Lighter +30%#395D9B
Lighter +20%#2C4775
Lighter +10%#1E3050
Darker −10%#020406
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#091832
Less saturated −25%#171C24

Channel breakdown

R16
G26
B43
Red16 (6.3%)
Green26 (10.2%)
Blue43 (16.9%)
Hue217.78°
Saturation (HSL)45.76%
Lightness11.57%
Dominant channelBlue
Hex per channelR 10 · G 1A · B 2B

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Every value on this page was computed from “101a2b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.