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Colour

#665FD6

  • #665FD6
  • Blue
  • Dark
  • Nearest: Slate blue

#665FD6 is a blue with RGB values 102, 95, 214 and HSL 244°, 59%, 61%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#665FD6#665FD6
HEX#665FD6
RGBrgb(102, 95, 214)
RGB (0–1)0.4, 0.3725, 0.8392
RGB percentages40%, 37.3%, 83.9%
HSLhsl(243.5, 59.2%, 60.6%)
HSV / HSBhsv(243.5, 55.6%, 83.9%)
CMYK52.3%, 55.6%, 0%, 16.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,709,206
CSS custom property--colour: #665FD6;

Brightness & contrast

Relative luminance0.15864WCAG 2.x, 0 is black and 1 is white
Perceived brightness116.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.03:1
Contrast with white5.03:1WCAG normal text: AA
Contrast with black4.17:1WCAG normal text: Fail
Greyscale equivalent#696969
Inverted#99A029

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0A73DAno red cones; affects about 1% of men; ΔE 22.2 from the original
Deuteranopia#006BD3no green cones; the most common form, about 1% of men; ΔE 20.1 from the original
Tritanopia#377A91no blue cones; rare, and affects men and women equally; ΔE 64.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.03:1WCAG large text: AAA
Contrast with black, large text4.17:1WCAG large text: AA

Named colours

Slate blue · ΔE 3.4Medium slateblue · ΔE 9.4Royal blue · ΔE 9.9Medium purple · ΔE 13.4Rebecca purple · ΔE 20.9Dark slateblue · ΔE 26
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 3.35, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CFD65F
Analogous#5F94D6, #A25FD6
Triadic#D6665F, #5FD666
Split complementary#D6A15F, #94D65F
Tetradic#D65F94, #CFD65F, #5FD6A1

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DAD9F5
Lighter +20%#B4B0EB
Lighter +10%#8D88E0
Darker −10%#3F36CC
Darker −20%#312AA5
Darker −30%#25207C
Darker −40%#191554
More saturated +25%#5046EF
Less saturated −25%#7C78BD

Channel breakdown

R102
G95
B214
Red102 (40%)
Green95 (37.3%)
Blue214 (83.9%)
Hue243.53°
Saturation (HSL)59.2%
Lightness60.59%
Dominant channelBlue
Hex per channelR 66 · G 5F · B D6

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Every value on this page was computed from “665fd6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.