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Recognised as Colour

#11111A

  • #11111A
  • Blue
  • Dark
  • Nearest: Black

#11111A is a blue with RGB values 17, 17, 26 and HSL 240°, 21%, 8%. It is a dark colour, so white text on it reaches 18.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#11111A#11111A
HEX#11111A
RGBrgb(17, 17, 26)
RGB (0–1)0.0667, 0.0667, 0.102
RGB percentages6.7%, 6.7%, 10.2%
HSLhsl(240, 20.9%, 8.4%)
HSV / HSBhsv(240, 34.6%, 10.2%)
CMYK34.6%, 34.6%, 0%, 89.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,118,490
CSS custom property--colour: #11111A;

Brightness & contrast

Relative luminance0.00595WCAG 2.x, 0 is black and 1 is white
Perceived brightness18.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.77:1
Contrast with white18.77:1WCAG normal text: AAA
Contrast with black1.12:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#EEEEE5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0F121Ano red cones; affects about 1% of men; ΔE 1.3 from the original
Deuteranopia#0E121Ano green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#0F1314no blue cones; rare, and affects men and women equally; ΔE 5.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.77:1WCAG large text: AAA
Contrast with black, large text1.12:1WCAG large text: Fail

Named colours

Black · ΔE 8.2Dark slate grey · ΔE 29.4Dim grey · ΔE 39.5Slate grey · ΔE 47.9Gray · ΔE 48.6Dark slateblue · ΔE 50.3
Nearest named CSS colourBlack (#000000)ΔE 8.23, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1A1A11
Analogous#11161A, #16111A
Triadic#1A1111, #111A11
Split complementary#1A1611, #161A11
Tetradic#1A1116, #1A1A11, #111A16

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#626295
Lighter +30%#4D4D77
Lighter +20%#393958
Lighter +10%#252539
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0C0C1F
Less saturated −25%#161616

Channel breakdown

R17
G17
B26
Red17 (6.7%)
Green17 (6.7%)
Blue26 (10.2%)
Hue240°
Saturation (HSL)20.93%
Lightness8.43%
Dominant channelBlue
Hex per channelR 11 · G 11 · B 1A

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Every value on this page was computed from “11111a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.