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Recognised as Colour

#6337DD

  • #6337DD
  • Violet
  • Dark
  • Nearest: Blue violet

#6337DD is a violet with RGB values 99, 55, 221 and HSL 256°, 71%, 54%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Blue violet.

Colour values

#6337DD#6337DD
HEX#6337DD
RGBrgb(99, 55, 221)
RGB (0–1)0.3882, 0.2157, 0.8667
RGB percentages38.8%, 21.6%, 86.7%
HSLhsl(255.9, 70.9%, 54.1%)
HSV / HSBhsv(255.9, 75.1%, 86.7%)
CMYK55.2%, 75.1%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,502,365
CSS custom property--colour: #6337DD;

Brightness & contrast

Relative luminance0.10605WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.73:1
Contrast with white6.73:1WCAG normal text: AA
Contrast with black3.12:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#9CC822

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0060E2no red cones; affects about 1% of men; ΔE 31.5 from the original
Deuteranopia#0057DAno green cones; the most common form, about 1% of men; ΔE 28.4 from the original
Tritanopia#2B6688no blue cones; rare, and affects men and women equally; ΔE 84.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.73:1WCAG large text: AAA
Contrast with black, large text3.12:1WCAG large text: AA

Named colours

Blue violet · ΔE 12.1Dark orchid · ΔE 19.1Dark violet · ΔE 19.2Medium blue · ΔE 21.6Medium slateblue · ΔE 25Dark blue · ΔE 26.9
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 12.09, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B1DD37
Analogous#375EDD, #B637DD
Triadic#DD6337, #37DD63
Split complementary#DDB637, #5EDD37
Tetradic#DD375E, #B1DD37, #37DDB6

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBE5FB
Lighter +30%#C9BAF3
Lighter +20%#A78EEC
Lighter +10%#8563E4
Darker −10%#4B21C0
Darker −20%#3A1995
Darker −30%#291269
Darker −40%#180A3E
More saturated +25%#551AFA
Less saturated −25%#7154C0

Channel breakdown

R99
G55
B221
Red99 (38.8%)
Green55 (21.6%)
Blue221 (86.7%)
Hue255.9°
Saturation (HSL)70.94%
Lightness54.12%
Dominant channelBlue
Hex per channelR 63 · G 37 · B DD

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Every value on this page was computed from “6337dd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.