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Recognised as Colour

#170D20

  • #170D20
  • Violet
  • Dark
  • Nearest: Black

#170D20 is a violet with RGB values 23, 13, 32 and HSL 272°, 42%, 9%. It is a dark colour, so white text on it reaches 18.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#170D20#170D20
HEX#170D20
RGBrgb(23, 13, 32)
RGB (0–1)0.0902, 0.051, 0.1255
RGB percentages9%, 5.1%, 12.5%
HSLhsl(271.6, 42.2%, 8.8%)
HSV / HSBhsv(271.6, 59.4%, 12.5%)
CMYK28.1%, 59.4%, 0%, 87.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,510,688
CSS custom property--colour: #170D20;

Brightness & contrast

Relative luminance0.00574WCAG 2.x, 0 is black and 1 is white
Perceived brightness19.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.84:1
Contrast with white18.84:1WCAG normal text: AAA
Contrast with black1.11:1WCAG normal text: Fail
Greyscale equivalent#101010
Inverted#E8F2DF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#091121no red cones; affects about 1% of men; ΔE 6.8 from the original
Deuteranopia#0B111Fno green cones; the most common form, about 1% of men; ΔE 7 from the original
Tritanopia#161014no blue cones; rare, and affects men and women equally; ΔE 10.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.84:1WCAG large text: AAA
Contrast with black, large text1.11:1WCAG large text: Fail

Named colours

Black · ΔE 14.8Dark slate grey · ΔE 33.8Dim grey · ΔE 41.6Dark slateblue · ΔE 44.1Midnight blue · ΔE 46.4Slate grey · ΔE 48.9
Nearest named CSS colourBlack (#000000)ΔE 14.75, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#16200D
Analogous#0D0D20, #200D20
Triadic#20170D, #0D2017
Split complementary#20200D, #0D200D
Tetradic#200D0D, #16200D, #0D2020

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7F48B1
Lighter +30%#65398D
Lighter +20%#4B2A69
Lighter +10%#311C44
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#170726
Less saturated −25%#17131A

Channel breakdown

R23
G13
B32
Red23 (9%)
Green13 (5.1%)
Blue32 (12.5%)
Hue271.58°
Saturation (HSL)42.22%
Lightness8.82%
Dominant channelBlue
Hex per channelR 17 · G 0D · B 20

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Every value on this page was computed from “170d20” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.