Nerdulator> put something in

Colour

#817EFF

  • #817EFF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#817EFF is a blue with RGB values 129, 126, 255 and HSL 241°, 100%, 75%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#817EFF#817EFF
HEX#817EFF
RGBrgb(129, 126, 255)
RGB (0–1)0.5059, 0.4941, 1
RGB percentages50.6%, 49.4%, 100%
HSLhsl(241.4, 100%, 74.7%)
HSV / HSBhsv(241.4, 50.6%, 100%)
CMYK49.4%, 50.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,486,655
CSS custom property--colour: #817EFF;

Brightness & contrast

Relative luminance0.26809WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.36:1
Contrast with white3.3:1WCAG normal text: Fail
Contrast with black6.36:1WCAG normal text: AA
Greyscale equivalent#888888
Inverted#7E8100

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3E92FFno red cones; affects about 1% of men; ΔE 23.3 from the original
Deuteranopia#3289FCno green cones; the most common form, about 1% of men; ΔE 20 from the original
Tritanopia#509AB3no blue cones; rare, and affects men and women equally; ΔE 66.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.3:1WCAG large text: AA
Contrast with black, large text6.36:1WCAG large text: AAA

Named colours

Medium slateblue · ΔE 9.4Royal blue · ΔE 13.7Medium purple · ΔE 14.7Slate blue · ΔE 15Dodgerblue · ΔE 24.5Cornflower blue · ΔE 29.3
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 9.44, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FCFF7E
Analogous#7EBBFF, #C27EFF
Triadic#FF817E, #7EFF81
Split complementary#FFC27E, #BBFF7E
Tetradic#FF7EBC, #FCFF7E, #7EFFC2

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#E5E4FF
Lighter +10%#B3B1FF
Darker −10%#4F4BFF
Darker −20%#1D18FF
Darker −30%#0500E4
Darker −40%#0400B1
More saturated +25%#817EFF
Less saturated −25%#908EEF

Channel breakdown

R129
G126
B255
Red129 (50.6%)
Green126 (49.4%)
Blue255 (100%)
Hue241.4°
Saturation (HSL)100%
Lightness74.71%
Dominant channelBlue
Hex per channelR 81 · G 7E · B FF

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 “817eff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.