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Colour

#16171C

  • #16171C
  • Blue
  • Dark
  • Nearest: Black

#16171C is a blue with RGB values 22, 23, 28 and HSL 230°, 12%, 10%. It is a dark colour, so white text on it reaches 17.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#16171C#16171C
HEX#16171C
RGBrgb(22, 23, 28)
RGB (0–1)0.0863, 0.0902, 0.1098
RGB percentages8.6%, 9%, 11%
HSLhsl(230, 12%, 9.8%)
HSV / HSBhsv(230, 21.4%, 11%)
CMYK21.4%, 17.9%, 0%, 89%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,447,708
CSS custom property--colour: #16171C;

Brightness & contrast

Relative luminance0.00867WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.9:1
Contrast with white17.9:1WCAG normal text: AAA
Contrast with black1.17:1WCAG normal text: Fail
Greyscale equivalent#171717
Inverted#E9E8E3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#16171Cno red cones; affects about 1% of men; ΔE 0 from the original
Deuteranopia#15171Cno green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#151819no blue cones; rare, and affects men and women equally; ΔE 3.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.9:1WCAG large text: AAA
Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Black · ΔE 8.7Dark slate grey · ΔE 26.6Dim grey · ΔE 36.8Slate grey · ΔE 45.6Gray · ΔE 45.9Light slate grey · ΔE 48.8
Nearest named CSS colourBlack (#000000)ΔE 8.7, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1C1B16
Analogous#161A1C, #18161C
Triadic#1C1617, #171C16
Split complementary#1C1816, #1A1C16
Tetradic#1C161A, #1C1B16, #161C18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#70758E
Lighter +30%#595D72
Lighter +20%#434655
Lighter +10%#2C2E39
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#101322
Less saturated −25%#191919

Channel breakdown

R22
G23
B28
Red22 (8.6%)
Green23 (9%)
Blue28 (11%)
Hue230°
Saturation (HSL)12%
Lightness9.8%
Dominant channelBlue
Hex per channelR 16 · G 17 · B 1C

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Every value on this page was computed from “16171c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.