Colour

#11172D

#11172D
Blue
Dark
Nearest: Black

#11172D is a blue with RGB values 17, 23, 45 and HSL 227°, 45%, 12%. It is a dark colour, so white text on it reaches 17.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#11172D#11172D

HEX#11172D

RGBrgb(17, 23, 45)

RGB (0–1)0.0667, 0.0902, 0.1765

RGB percentages6.7%, 9%, 17.6%

HSLhsl(227.1, 45.2%, 12.2%)

HSV / HSBhsv(227.1, 62.2%, 17.6%)

CMYK62.2%, 48.9%, 0%, 82.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,120,045

CSS custom property--colour: #11172D;

Brightness & contrast

Relative luminance0.00921WCAG 2.x, 0 is black and 1 is white

Perceived brightness25.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.73:1

Contrast with white17.73:1WCAG normal text: AAA

Contrast with black1.18:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#EEE8D2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0E192Eno red cones; affects about 1% of men; ΔE 2.1 from the original

Deuteranopia#0B172Dno green cones; the most common form, about 1% of men; ΔE 1.8 from the original

Tritanopia#061C1Fno blue cones; rare, and affects men and women equally; ΔE 16.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.73:1WCAG large text: AAA

Contrast with black, large text1.18:1WCAG large text: Fail

Named colours

Black · ΔE 18.5 Dark slate grey · ΔE 30.9 Dim grey · ΔE 39.7 Dark slateblue · ΔE 40.5 Midnight blue · ΔE 43.7 Slate grey · ΔE 45.4

Nearest named CSS colourBlack (#000000)ΔE 18.51, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#2D2711

Analogous#11252D, #19112D

Triadic#2D1117, #172D11

Split complementary#2D1911, #252D11

Tetradic#2D1125, #2D2711, #112D19

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#4E66BC

Lighter +30%#3B509C

Lighter +20%#2D3D77

Lighter +10%#1F2A52

Darker −10%#030408

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#091335

Less saturated −25%#191B25

Channel breakdown

R17

G23

B45

Red17 (6.7%)

Green23 (9%)

Blue45 (17.6%)

Hue227.14°

Saturation (HSL)45.16%

Lightness12.16%

Dominant channelBlue

Hex per channelR 11 · G 17 · B 2D

Keep nerding

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#11172D

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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