Nerdulator> put something in

Recognised as Colour

#664DE6

  • #664DE6
  • Blue
  • Dark
  • Nearest: Medium slateblue

#664DE6 is a blue with RGB values 102, 77, 230 and HSL 250°, 75%, 60%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#664DE6#664DE6
HEX#664DE6
RGBrgb(102, 77, 230)
RGB (0–1)0.4, 0.302, 0.902
RGB percentages40%, 30.2%, 90.2%
HSLhsl(249.8, 75.4%, 60.2%)
HSV / HSBhsv(249.8, 66.5%, 90.2%)
CMYK55.7%, 66.5%, 0%, 9.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,704,614
CSS custom property--colour: #664DE6;

Brightness & contrast

Relative luminance0.13846WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.57:1
Contrast with white5.57:1WCAG normal text: AA
Contrast with black3.77:1WCAG normal text: Fail
Greyscale equivalent#5D5D5D
Inverted#99B219

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006DEBno red cones; affects about 1% of men; ΔE 27.8 from the original
Deuteranopia#0063E3no green cones; the most common form, about 1% of men; ΔE 24.1 from the original
Tritanopia#267493no blue cones; rare, and affects men and women equally; ΔE 80.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.57:1WCAG large text: AAA
Contrast with black, large text3.77:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 15.1Blue violet · ΔE 19.7Dark orchid · ΔE 20.5Slate blue · ΔE 21.8Royal blue · ΔE 25.9Dark violet · ΔE 26.7
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 15.11, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CDE64D
Analogous#4D81E6, #B24DE6
Triadic#E6664D, #4DE666
Split complementary#E6B34D, #80E64D
Tetradic#E64D81, #CDE64D, #4DE6B2

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#D9D3F9
Lighter +20%#B3A6F3
Lighter +10%#8C7AEC
Darker −10%#4020E0
Darker −20%#3219B4
Darker −30%#261387
Darker −40%#190D5A
More saturated +25%#5534FF
Less saturated −25%#7766CD

Channel breakdown

R102
G77
B230
Red102 (40%)
Green77 (30.2%)
Blue230 (90.2%)
Hue249.8°
Saturation (HSL)75.37%
Lightness60.2%
Dominant channelBlue
Hex per channelR 66 · G 4D · B E6

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 “664de6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.