Nerdulator> put something in

Colour

#645C97

  • #645C97
  • Blue
  • Dark
  • Nearest: Dark slateblue

#645C97 is a blue with RGB values 100, 92, 151 and HSL 248°, 24%, 48%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#645C97#645C97
HEX#645C97
RGBrgb(100, 92, 151)
RGB (0–1)0.3922, 0.3608, 0.5922
RGB percentages39.2%, 36.1%, 59.2%
HSLhsl(248.1, 24.3%, 47.6%)
HSV / HSBhsv(248.1, 39.1%, 59.2%)
CMYK33.8%, 39.1%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,577,303
CSS custom property--colour: #645C97;

Brightness & contrast

Relative luminance0.12598WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.97:1
Contrast with white5.97:1WCAG normal text: AA
Contrast with black3.52:1WCAG normal text: Fail
Greyscale equivalent#626262
Inverted#9BA368

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4A6599no red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#4A6296no green cones; the most common form, about 1% of men; ΔE 11.2 from the original
Tritanopia#586772no blue cones; rare, and affects men and women equally; ΔE 31 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.97:1WCAG large text: AAA
Contrast with black, large text3.52:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 17.9Steel blue · ΔE 24Cornflower blue · ΔE 28Medium purple · ΔE 29.9Slate grey · ΔE 30.5Rebecca purple · ΔE 31.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8F975C
Analogous#5C7297, #815C97
Triadic#97645C, #5C9764
Split complementary#97815C, #72975C
Tetradic#975C72, #8F975C, #5C9781

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DAD8E7
Lighter +30%#BCB8D4
Lighter +20%#9E98C1
Lighter +10%#8079AD
Darker −10%#4F4977
Darker −20%#3A3558
Darker −30%#252238
Darker −40%#100F18
More saturated +25%#4E3EB5
Less saturated −25%#797979

Channel breakdown

R100
G92
B151
Red100 (39.2%)
Green92 (36.1%)
Blue151 (59.2%)
Hue248.14°
Saturation (HSL)24.28%
Lightness47.65%
Dominant channelBlue
Hex per channelR 64 · G 5C · B 97

Keep nerding

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

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “645c97” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.