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Recognised as Colour

#634B97

  • #634B97
  • Violet
  • Dark
  • Nearest: Dark slateblue

#634B97 is a violet with RGB values 99, 75, 151 and HSL 259°, 34%, 44%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#634B97#634B97
HEX#634B97
RGBrgb(99, 75, 151)
RGB (0–1)0.3882, 0.2941, 0.5922
RGB percentages38.8%, 29.4%, 59.2%
HSLhsl(258.9, 33.6%, 44.3%)
HSV / HSBhsv(258.9, 50.3%, 59.2%)
CMYK34.4%, 50.3%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,507,415
CSS custom property--colour: #634B97;

Brightness & contrast

Relative luminance0.09919WCAG 2.x, 0 is black and 1 is white
Perceived brightness94 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.04:1
Contrast with white7.04:1WCAG normal text: AAA
Contrast with black2.98:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#9CB468

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#30599Ano red cones; affects about 1% of men; ΔE 19.9 from the original
Deuteranopia#355895no green cones; the most common form, about 1% of men; ΔE 20.1 from the original
Tritanopia#575A6Ano blue cones; rare, and affects men and women equally; ΔE 38.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.04:1WCAG large text: AAA
Contrast with black, large text2.98:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 8Rebecca purple · ΔE 18.2Slate blue · ΔE 22.5Medium purple · ΔE 22.8Midnight blue · ΔE 24.9Royal blue · ΔE 28.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 8.05, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F974B
Analogous#4B5997, #894B97
Triadic#97634B, #4B9763
Split complementary#97894B, #59974B
Tetradic#974B59, #7F974B, #4B9789

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D2CAE4
Lighter +30%#B5A7D4
Lighter +20%#9985C3
Lighter +10%#7C63B2
Darker −10%#4D3A75
Darker −20%#362953
Darker −30%#201831
Darker −40%#0A070F
More saturated +25%#592FB3
Less saturated −25%#6D677B

Channel breakdown

R99
G75
B151
Red99 (38.8%)
Green75 (29.4%)
Blue151 (59.2%)
Hue258.95°
Saturation (HSL)33.63%
Lightness44.31%
Dominant channelBlue
Hex per channelR 63 · G 4B · B 97

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Every value on this page was computed from “634b97” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.