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Recognised as Colour

#150F21

  • #150F21
  • Violet
  • Dark
  • Nearest: Black

#150F21 is a violet with RGB values 21, 15, 33 and HSL 260°, 38%, 9%. It is a dark colour, so white text on it reaches 18.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#150F21#150F21
HEX#150F21
RGBrgb(21, 15, 33)
RGB (0–1)0.0824, 0.0588, 0.1294
RGB percentages8.2%, 5.9%, 12.9%
HSLhsl(260, 37.5%, 9.4%)
HSV / HSBhsv(260, 54.5%, 12.9%)
CMYK36.4%, 54.5%, 0%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,380,129
CSS custom property--colour: #150F21;

Brightness & contrast

Relative luminance0.00611WCAG 2.x, 0 is black and 1 is white
Perceived brightness19.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.71:1
Contrast with white18.71:1WCAG normal text: AAA
Contrast with black1.12:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#EAF0DE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0A1222no red cones; affects about 1% of men; ΔE 5.2 from the original
Deuteranopia#0B1221no green cones; the most common form, about 1% of men; ΔE 5.3 from the original
Tritanopia#131216no blue cones; rare, and affects men and women equally; ΔE 10.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.71:1WCAG large text: AAA
Contrast with black, large text1.12:1WCAG large text: Fail

Named colours

Black · ΔE 14.2Dark slate grey · ΔE 32.7Dim grey · ΔE 41.1Dark slateblue · ΔE 44.3Midnight blue · ΔE 46.9Slate grey · ΔE 48.2
Nearest named CSS colourBlack (#000000)ΔE 14.24, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1B210F
Analogous#0F1221, #1E0F21
Triadic#21150F, #0F2115
Split complementary#211E0F, #12210F
Tetradic#210F12, #1B210F, #0F211E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6E4FAD
Lighter +30%#583F8A
Lighter +20%#422F67
Lighter +10%#2B1F44
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#130927
Less saturated −25%#17151B

Channel breakdown

R21
G15
B33
Red21 (8.2%)
Green15 (5.9%)
Blue33 (12.9%)
Hue260°
Saturation (HSL)37.5%
Lightness9.41%
Dominant channelBlue
Hex per channelR 15 · G 0F · B 21

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Every value on this page was computed from “150f21” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.