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Colour

#11171A

  • #11171A
  • Blue
  • Dark
  • Nearest: Black

#11171A is a blue with RGB values 17, 23, 26 and HSL 200°, 21%, 8%. It is a dark colour, so white text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#11171A#11171A
HEX#11171A
RGBrgb(17, 23, 26)
RGB (0–1)0.0667, 0.0902, 0.102
RGB percentages6.7%, 9%, 10.2%
HSLhsl(200, 20.9%, 8.4%)
HSV / HSBhsv(200, 34.6%, 10.2%)
CMYK34.6%, 11.5%, 0%, 89.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,120,026
CSS custom property--colour: #11171A;

Brightness & contrast

Relative luminance0.00807WCAG 2.x, 0 is black and 1 is white
Perceived brightness21.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.08:1
Contrast with white18.08:1WCAG normal text: AAA
Contrast with black1.16:1WCAG normal text: Fail
Greyscale equivalent#161616
Inverted#EEE8E5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#15171Ano red cones; affects about 1% of men; ΔE 1.8 from the original
Deuteranopia#14161Ano green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#0E1818no blue cones; rare, and affects men and women equally; ΔE 2.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.08:1WCAG large text: AAA
Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 8.1Dark slate grey · ΔE 26Dim grey · ΔE 37.3Slate grey · ΔE 46.2Gray · ΔE 46.4Light slate grey · ΔE 49.3
Nearest named CSS colourBlack (#000000)ΔE 8.08, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1A1411
Analogous#111A19, #11121A
Triadic#1A1117, #171A11
Split complementary#1A1113, #1A1911
Tetradic#18111A, #1A1411, #131A11

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#628495
Lighter +30%#4D6977
Lighter +20%#394E58
Lighter +10%#253239
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0C191F
Less saturated −25%#161616

Channel breakdown

R17
G23
B26
Red17 (6.7%)
Green23 (9%)
Blue26 (10.2%)
Hue200°
Saturation (HSL)20.93%
Lightness8.43%
Dominant channelBlue
Hex per channelR 11 · G 17 · B 1A

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Every value on this page was computed from “11171a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.