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Recognised as Colour

#17435B

  • #17435B
  • Blue
  • Dark
  • Nearest: Dark slate grey

#17435B is a blue with RGB values 23, 67, 91 and HSL 201°, 60%, 22%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#17435B#17435B
HEX#17435B
RGBrgb(23, 67, 91)
RGB (0–1)0.0902, 0.2627, 0.3569
RGB percentages9%, 26.3%, 35.7%
HSLhsl(201.2, 59.6%, 22.4%)
HSV / HSBhsv(201.2, 74.7%, 35.7%)
CMYK74.7%, 26.4%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,524,571
CSS custom property--colour: #17435B;

Brightness & contrast

Relative luminance0.04952WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.55:1
Contrast with white10.55:1WCAG normal text: AAA
Contrast with black1.99:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#E8BCA4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#38435Cno red cones; affects about 1% of men; ΔE 9.3 from the original
Deuteranopia#2E3C5Bno green cones; the most common form, about 1% of men; ΔE 10.2 from the original
Tritanopia#00494Bno blue cones; rare, and affects men and women equally; ΔE 17.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.55:1WCAG large text: AAA
Contrast with black, large text1.99:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16.6Dim grey · ΔE 26.5Slate grey · ΔE 27.7Steel blue · ΔE 29.3Light slate grey · ΔE 30.5Teal · ΔE 33
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.59, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B2F17
Analogous#175B51, #17215B
Triadic#5B1743, #435B17
Split complementary#5B1721, #5B5117
Tetradic#51175B, #5B2F17, #215B17

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#66B0D8
Lighter +30%#3D9BCE
Lighter +20%#2C7FAC
Lighter +10%#216184
Darker −10%#0D2532
Darker −20%#02070A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#094769
Less saturated −25%#253F4D

Channel breakdown

R23
G67
B91
Red23 (9%)
Green67 (26.3%)
Blue91 (35.7%)
Hue201.18°
Saturation (HSL)59.65%
Lightness22.35%
Dominant channelBlue
Hex per channelR 17 · G 43 · B 5B

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Every value on this page was computed from “17435b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.