Colour

#21153D

#21153D
Violet
Dark
Nearest: Dark slateblue

#21153D is a violet with RGB values 33, 21, 61 and HSL 258°, 49%, 16%. It is a dark colour, so white text on it reaches 16.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#21153D#21153D

HEX#21153D

RGBrgb(33, 21, 61)

RGB (0–1)0.1294, 0.0824, 0.2392

RGB percentages12.9%, 8.2%, 23.9%

HSLhsl(258, 48.8%, 16.1%)

HSV / HSBhsv(258, 65.6%, 23.9%)

CMYK45.9%, 65.6%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,168,125

CSS custom property--colour: #21153D;

Brightness & contrast

Relative luminance0.01197WCAG 2.x, 0 is black and 1 is white

Perceived brightness31.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.94:1

Contrast with white16.94:1WCAG normal text: AAA

Contrast with black1.24:1WCAG normal text: Fail

Greyscale equivalent#1A1A1A

Inverted#DEEAC2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#021D3Eno red cones; affects about 1% of men; ΔE 12.5 from the original

Deuteranopia#051C3Cno green cones; the most common form, about 1% of men; ΔE 12.1 from the original

Tritanopia#1A1E26no blue cones; rare, and affects men and women equally; ΔE 24.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.94:1WCAG large text: AAA

Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 28.7 Midnight blue · ΔE 30.1 Black · ΔE 31.2 Dark slate grey · ΔE 40.9 Rebecca purple · ΔE 41.3 Dim grey · ΔE 44.8

Nearest named CSS colourDark slateblue (#483D8B)ΔE 28.75, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#313D15

Analogous#151D3D, #35153D

Triadic#3D2115, #153D21

Split complementary#3D3515, #1D3D15

Tetradic#3D151D, #313D15, #153D35

Tints, shades & saturation

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

Lighter +40%#7958C6

Lighter +30%#5F3CAF

Lighter +20%#4A2F89

Lighter +10%#362263

Darker −10%#0C0817

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1D0B47

Less saturated −25%#251F33

Channel breakdown

R33

G21

B61

Red33 (12.9%)

Green21 (8.2%)

Blue61 (23.9%)

Hue258°

Saturation (HSL)48.78%

Lightness16.08%

Dominant channelBlue

Hex per channelR 21 · G 15 · B 3D

Keep nerding

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#21153D

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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