Nerdulator> put something in

Recognised as Colour

#644CD5

  • #644CD5
  • Blue
  • Dark
  • Nearest: Medium slateblue

#644CD5 is a blue with RGB values 100, 76, 213 and HSL 251°, 62%, 57%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#644CD5#644CD5
HEX#644CD5
RGBrgb(100, 76, 213)
RGB (0–1)0.3922, 0.298, 0.8353
RGB percentages39.2%, 29.8%, 83.5%
HSLhsl(250.5, 62%, 56.7%)
HSV / HSBhsv(250.5, 64.3%, 83.5%)
CMYK53.1%, 64.3%, 0%, 16.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,573,269
CSS custom property--colour: #644CD5;

Brightness & contrast

Relative luminance0.12682WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.94:1
Contrast with white5.94:1WCAG normal text: AA
Contrast with black3.54:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#9BB32A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0068D9no red cones; affects about 1% of men; ΔE 26.6 from the original
Deuteranopia#0060D2no green cones; the most common form, about 1% of men; ΔE 24 from the original
Tritanopia#356E8Ano blue cones; rare, and affects men and women equally; ΔE 72.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.94:1WCAG large text: AAA
Contrast with black, large text3.54:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 11Slate blue · ΔE 13.8Royal blue · ΔE 20.1Dark orchid · ΔE 21Rebecca purple · ΔE 22.4Medium purple · ΔE 23.1
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 10.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BDD54C
Analogous#4C79D5, #A84CD5
Triadic#D5644C, #4CD564
Split complementary#D5A84C, #79D54C
Tetradic#D54C79, #BDD54C, #4CD5A8

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F3F1FC
Lighter +30%#CFC8F2
Lighter +20%#AC9FE8
Lighter +10%#8875DF
Darker −10%#472DC1
Darker −20%#382497
Darker −30%#291A6E
Darker −40%#191045
More saturated +25%#5230F1
Less saturated −25%#7668B9

Channel breakdown

R100
G76
B213
Red100 (39.2%)
Green76 (29.8%)
Blue213 (83.5%)
Hue250.51°
Saturation (HSL)61.99%
Lightness56.67%
Dominant channelBlue
Hex per channelR 64 · G 4C · B D5

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 “644cd5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.