Nerdulator> put something in

Recognised as Colour

#642C74

  • #642C74
  • Violet
  • Dark
  • Nearest: Dark slateblue

#642C74 is a violet with RGB values 100, 44, 116 and HSL 287°, 45%, 31%. It is a dark colour, so white text on it reaches 9.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#642C74#642C74
HEX#642C74
RGBrgb(100, 44, 116)
RGB (0–1)0.3922, 0.1725, 0.4549
RGB percentages39.2%, 17.3%, 45.5%
HSLhsl(286.7, 45%, 31.4%)
HSV / HSBhsv(286.7, 62.1%, 45.5%)
CMYK13.8%, 62.1%, 0%, 54.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,564,980
CSS custom property--colour: #642C74;

Brightness & contrast

Relative luminance0.05772WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.75:1
Contrast with white9.75:1WCAG normal text: AAA
Contrast with black2.15:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#9BD38B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1A4076no red cones; affects about 1% of men; ΔE 30.4 from the original
Deuteranopia#2F4672no green cones; the most common form, about 1% of men; ΔE 31.8 from the original
Tritanopia#64384Bno blue cones; rare, and affects men and women equally; ΔE 31.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.75:1WCAG large text: AAA
Contrast with black, large text2.15:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.1Rebecca purple · ΔE 17.9Purple · ΔE 22.5Midnight blue · ΔE 23.6Dark magenta · ΔE 26.8Indigo · ΔE 28.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.08, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3C742C
Analogous#402C74, #742C60
Triadic#74642C, #2C7464
Split complementary#60742C, #2C7440
Tetradic#74402C, #3C742C, #2C6074

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C895D7
Lighter +30%#B570C9
Lighter +20%#A24BBB
Lighter +10%#843A99
Darker −10%#441E4F
Darker −20%#24102A
Darker −30%#040205
Darker −40%#000000
More saturated +25%#6F1888
Less saturated −25%#594060

Channel breakdown

R100
G44
B116
Red100 (39.2%)
Green44 (17.3%)
Blue116 (45.5%)
Hue286.67°
Saturation (HSL)45%
Lightness31.37%
Dominant channelBlue
Hex per channelR 64 · G 2C · B 74

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 “642c74” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.