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Recognised as Colour

#11131F

  • #11131F
  • Blue
  • Dark
  • Nearest: Black

#11131F is a blue with RGB values 17, 19, 31 and HSL 231°, 29%, 9%. It is a dark colour, so white text on it reaches 18.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#11131F#11131F
HEX#11131F
RGBrgb(17, 19, 31)
RGB (0–1)0.0667, 0.0745, 0.1216
RGB percentages6.7%, 7.5%, 12.2%
HSLhsl(231.4, 29.2%, 9.4%)
HSV / HSBhsv(231.4, 45.2%, 12.2%)
CMYK45.2%, 38.7%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,119,007
CSS custom property--colour: #11131F;

Brightness & contrast

Relative luminance0.00684WCAG 2.x, 0 is black and 1 is white
Perceived brightness20.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.47:1
Contrast with white18.47:1WCAG normal text: AAA
Contrast with black1.14:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#EEECE0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0F1420no red cones; affects about 1% of men; ΔE 1.1 from the original
Deuteranopia#0E131Fno green cones; the most common form, about 1% of men; ΔE 1.1 from the original
Tritanopia#0D1517no blue cones; rare, and affects men and women equally; ΔE 7.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.47:1WCAG large text: AAA
Contrast with black, large text1.14:1WCAG large text: Fail

Named colours

Black · ΔE 10.8Dark slate grey · ΔE 29.2Dim grey · ΔE 39.3Slate grey · ΔE 46.9Dark slateblue · ΔE 47.8Gray · ΔE 48.2
Nearest named CSS colourBlack (#000000)ΔE 10.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1F1D11
Analogous#111A1F, #16111F
Triadic#1F1113, #131F11
Split complementary#1F1611, #1A1F11
Tetradic#1F111A, #1F1D11, #111F16

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5964A3
Lighter +30%#475082
Lighter +20%#353B61
Lighter +10%#232740
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0B0F25
Less saturated −25%#171719

Channel breakdown

R17
G19
B31
Red17 (6.7%)
Green19 (7.5%)
Blue31 (12.2%)
Hue231.43°
Saturation (HSL)29.17%
Lightness9.41%
Dominant channelBlue
Hex per channelR 11 · G 13 · B 1F

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Every value on this page was computed from “11131f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.