Colour

#1C1521

#1C1521
Violet
Dark
Nearest: Black

#1C1521 is a violet with RGB values 28, 21, 33 and HSL 275°, 22%, 11%. It is a dark colour, so white text on it reaches 17.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1C1521#1C1521

HEX#1C1521

RGBrgb(28, 21, 33)

RGB (0–1)0.1098, 0.0824, 0.1294

RGB percentages11%, 8.2%, 12.9%

HSLhsl(275, 22.2%, 10.6%)

HSV / HSBhsv(275, 36.4%, 12.9%)

CMYK15.2%, 36.4%, 0%, 87.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,840,417

CSS custom property--colour: #1C1521;

Brightness & contrast

Relative luminance0.00893WCAG 2.x, 0 is black and 1 is white

Perceived brightness24.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.82:1

Contrast with white17.82:1WCAG normal text: AAA

Contrast with black1.18:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#E3EADE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#131721no red cones; affects about 1% of men; ΔE 5.4 from the original

Deuteranopia#151821no green cones; the most common form, about 1% of men; ΔE 5.3 from the original

Tritanopia#1C1719no blue cones; rare, and affects men and women equally; ΔE 7.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.82:1WCAG large text: AAA

Contrast with black, large text1.18:1WCAG large text: Fail

Named colours

Black · ΔE 12.6 Dark slate grey · ΔE 29.7 Dim grey · ΔE 37.6 Slate grey · ΔE 45.8 Dark slateblue · ΔE 46.1 Gray · ΔE 46.5

Nearest named CSS colourBlack (#000000)ΔE 12.59, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#1A2115

Analogous#161521, #211520

Triadic#211C15, #15211C

Split complementary#202115, #152116

Tetradic#211615, #1A2115, #152021

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#86659D

Lighter +30%#6B517F

Lighter +20%#513D5F

Lighter +10%#362940

Darker −10%#020102

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1D0E28

Less saturated −25%#1B1B1B

Channel breakdown

R28

G21

B33

Red28 (11%)

Green21 (8.2%)

Blue33 (12.9%)

Hue275°

Saturation (HSL)22.22%

Lightness10.59%

Dominant channelBlue

Hex per channelR 1C · G 15 · B 21

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#1C1521

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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