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Recognised as Colour

#665FE2

  • #665FE2
  • Blue
  • Dark
  • Nearest: Medium slateblue

#665FE2 is a blue with RGB values 102, 95, 226 and HSL 243°, 69%, 63%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#665FE2#665FE2
HEX#665FE2
RGBrgb(102, 95, 226)
RGB (0–1)0.4, 0.3725, 0.8863
RGB percentages40%, 37.3%, 88.6%
HSLhsl(243.2, 69.3%, 62.9%)
HSV / HSBhsv(243.2, 58%, 88.6%)
CMYK54.9%, 58%, 0%, 11.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,709,218
CSS custom property--colour: #665FE2;

Brightness & contrast

Relative luminance0.165WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.88:1
Contrast with white4.88:1WCAG normal text: AA
Contrast with black4.3:1WCAG normal text: Fail
Greyscale equivalent#6A6A6A
Inverted#99A01D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0076E6no red cones; affects about 1% of men; ΔE 23.6 from the original
Deuteranopia#006CDFno green cones; the most common form, about 1% of men; ΔE 19.7 from the original
Tritanopia#297E97no blue cones; rare, and affects men and women equally; ΔE 71.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.88:1WCAG large text: AAA
Contrast with black, large text4.3:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 5.2Slate blue · ΔE 9Royal blue · ΔE 12.4Medium purple · ΔE 17.7Rebecca purple · ΔE 24.3Dark orchid · ΔE 27.5
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 5.17, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DBE25F
Analogous#5F9AE2, #A75FE2
Triadic#E2665F, #5FE266
Split complementary#E2A85F, #9AE25F
Tetradic#E25F9A, #DBE25F, #5FE2A7

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E2E1F9
Lighter +20%#B9B5F2
Lighter +10%#8F8AEA
Darker −10%#3D34DA
Darker −20%#2A22B9
Darker −30%#201A8E
Darker −40%#161263
More saturated +25%#5147FA
Less saturated −25%#7B77CA

Channel breakdown

R102
G95
B226
Red102 (40%)
Green95 (37.3%)
Blue226 (88.6%)
Hue243.21°
Saturation (HSL)69.31%
Lightness62.94%
Dominant channelBlue
Hex per channelR 66 · G 5F · B E2

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Every value on this page was computed from “665fe2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.