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Recognised as Colour

#A558CB

  • #A558CB
  • Violet
  • Dark
  • Nearest: Medium orchid

#A558CB is a violet with RGB values 165, 88, 203 and HSL 280°, 53%, 57%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Medium orchid.

Colour values

#A558CB#A558CB
HEX#A558CB
RGBrgb(165, 88, 203)
RGB (0–1)0.6471, 0.3451, 0.7961
RGB percentages64.7%, 34.5%, 79.6%
HSLhsl(280.2, 52.5%, 57.1%)
HSV / HSBhsv(280.2, 56.7%, 79.6%)
CMYK18.7%, 56.7%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,836,171
CSS custom property--colour: #A558CB;

Brightness & contrast

Relative luminance0.19291WCAG 2.x, 0 is black and 1 is white
Perceived brightness131.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.86:1
Contrast with white4.32:1WCAG normal text: Fail
Contrast with black4.86:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#5AA734

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3775CFno red cones; affects about 1% of men; ΔE 40.2 from the original
Deuteranopia#537BC8no green cones; the most common form, about 1% of men; ΔE 41.4 from the original
Tritanopia#A16C89no blue cones; rare, and affects men and women equally; ΔE 47.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.32:1WCAG large text: AA
Contrast with black, large text4.86:1WCAG large text: AAA

Named colours

Medium orchid · ΔE 8.8Medium purple · ΔE 14.8Orchid · ΔE 18Slate blue · ΔE 19Rebecca purple · ΔE 19.7Medium slateblue · ΔE 20.7
Nearest named CSS colourMedium orchid (#BA55D3)ΔE 8.76, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7ECB58
Analogous#6C58CB, #CB58B7
Triadic#CBA558, #58CBA5
Split complementary#B8CB58, #58CB6B
Tetradic#CB6B58, #7ECB58, #58B8CB

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F9F4FB
Lighter +30%#E4CDEF
Lighter +20%#CFA6E3
Lighter +10%#BA7FD7
Darker −10%#8D39B7
Darker −20%#6F2D90
Darker −30%#512169
Darker −40%#331542
More saturated +25%#AE3DE6
Less saturated −25%#9C73B0

Channel breakdown

R165
G88
B203
Red165 (64.7%)
Green88 (34.5%)
Blue203 (79.6%)
Hue280.17°
Saturation (HSL)52.51%
Lightness57.06%
Dominant channelBlue
Hex per channelR A5 · G 58 · B CB

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Every value on this page was computed from “a558cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.