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Recognised as Colour

#231F25

  • #231F25
  • Violet
  • Dark
  • Nearest: Black

#231F25 is a violet with RGB values 35, 31, 37 and HSL 280°, 9%, 13%. It is a dark colour, so white text on it reaches 16.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#231F25#231F25
HEX#231F25
RGBrgb(35, 31, 37)
RGB (0–1)0.1373, 0.1216, 0.1451
RGB percentages13.7%, 12.2%, 14.5%
HSLhsl(280, 8.8%, 13.3%)
HSV / HSBhsv(280, 16.2%, 14.5%)
CMYK5.4%, 16.2%, 0%, 85.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,301,733
CSS custom property--colour: #231F25;

Brightness & contrast

Relative luminance0.01471WCAG 2.x, 0 is black and 1 is white
Perceived brightness33 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.23:1
Contrast with white16.23:1WCAG normal text: AAA
Contrast with black1.29:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#DCE0DA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E2025no red cones; affects about 1% of men; ΔE 3 from the original
Deuteranopia#1F2025no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#232021no blue cones; rare, and affects men and women equally; ΔE 3.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.23:1WCAG large text: AAA
Contrast with black, large text1.29:1WCAG large text: Fail

Named colours

Black · ΔE 13.3Dark slate grey · ΔE 24.1Dim grey · ΔE 32.3Slate grey · ΔE 41.4Gray · ΔE 41.4Light slate grey · ΔE 44.5
Nearest named CSS colourBlack (#000000)ΔE 13.3, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#21251F
Analogous#201F25, #251F24
Triadic#25231F, #1F2523
Split complementary#24251F, #1F2520
Tetradic#25201F, #21251F, #1F2425

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8C7E93
Lighter +30%#726578
Lighter +20%#584E5D
Lighter +10%#3D3641
Darker −10%#090809
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#26172D
Less saturated −25%#222222

Channel breakdown

R35
G31
B37
Red35 (13.7%)
Green31 (12.2%)
Blue37 (14.5%)
Hue280°
Saturation (HSL)8.82%
Lightness13.33%
Dominant channelBlue
Hex per channelR 23 · G 1F · B 25

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Every value on this page was computed from “231f25” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.