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Recognised as Colour

#17344F

  • #17344F
  • Blue
  • Dark
  • Nearest: Dark slate grey

#17344F is a blue with RGB values 23, 52, 79 and HSL 209°, 55%, 20%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#17344F#17344F
HEX#17344F
RGBrgb(23, 52, 79)
RGB (0–1)0.0902, 0.2039, 0.3098
RGB percentages9%, 20.4%, 31%
HSLhsl(208.9, 54.9%, 20%)
HSV / HSBhsv(208.9, 70.9%, 31%)
CMYK70.9%, 34.2%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,520,719
CSS custom property--colour: #17344F;

Brightness & contrast

Relative luminance0.03203WCAG 2.x, 0 is black and 1 is white
Perceived brightness49.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.8:1
Contrast with white12.8:1WCAG normal text: AAA
Contrast with black1.64:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#E8CBB0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#283550no red cones; affects about 1% of men; ΔE 4.5 from the original
Deuteranopia#21304Eno green cones; the most common form, about 1% of men; ΔE 4.9 from the original
Tritanopia#003A3Eno blue cones; rare, and affects men and women equally; ΔE 18.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.8:1WCAG large text: AAA
Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 22Black · ΔE 28.7Dim grey · ΔE 30.8Slate grey · ΔE 33.3Steel blue · ΔE 34.1Light slate grey · ΔE 36.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 21.96, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4F3217
Analogous#174F4E, #17184F
Triadic#4F1734, #344F17
Split complementary#4F1718, #4F4E17
Tetradic#4E174F, #4F3217, #184F17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#619BD1
Lighter +30%#3A82C5
Lighter +20%#2E689E
Lighter +10%#234E76
Darker −10%#0C1A27
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0A345C
Less saturated −25%#243442

Channel breakdown

R23
G52
B79
Red23 (9%)
Green52 (20.4%)
Blue79 (31%)
Hue208.93°
Saturation (HSL)54.9%
Lightness20%
Dominant channelBlue
Hex per channelR 17 · G 34 · B 4F

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Every value on this page was computed from “17344f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.