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Recognised as Colour

#554AAB

  • #554AAB
  • Blue
  • Dark
  • Nearest: Slate blue

#554AAB is a blue with RGB values 85, 74, 171 and HSL 247°, 40%, 48%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#554AAB#554AAB
HEX#554AAB
RGBrgb(85, 74, 171)
RGB (0–1)0.3333, 0.2902, 0.6706
RGB percentages33.3%, 29%, 67.1%
HSLhsl(246.8, 39.6%, 48%)
HSV / HSBhsv(246.8, 56.7%, 67.1%)
CMYK50.3%, 56.7%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,589,675
CSS custom property--colour: #554AAB;

Brightness & contrast

Relative luminance0.09769WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.11:1
Contrast with white7.11:1WCAG normal text: AAA
Contrast with black2.95:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#AAB554

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#085BAEno red cones; affects about 1% of men; ΔE 20.3 from the original
Deuteranopia#0055A9no green cones; the most common form, about 1% of men; ΔE 18.7 from the original
Tritanopia#356073no blue cones; rare, and affects men and women equally; ΔE 53.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.11:1WCAG large text: AAA
Contrast with black, large text2.95:1WCAG large text: Fail

Named colours

Slate blue · ΔE 11.8Dark slateblue · ΔE 11.9Rebecca purple · ΔE 13.3Royal blue · ΔE 18.4Medium purple · ΔE 18.5Midnight blue · ΔE 21.6
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 11.76, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A0AB4A
Analogous#4A6FAB, #864AAB
Triadic#AB554A, #4AAB55
Split complementary#AB854A, #70AB4A
Tetradic#AB4A6F, #A0AB4A, #4AAB86

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D7D4ED
Lighter +30%#B6B1DD
Lighter +20%#958DCE
Lighter +10%#736ABE
Darker −10%#433B87
Darker −20%#322B64
Darker −30%#201C40
Darker −40%#0E0C1D
More saturated +25%#3D2BCA
Less saturated −25%#6D698C

Channel breakdown

R85
G74
B171
Red85 (33.3%)
Green74 (29%)
Blue171 (67.1%)
Hue246.8°
Saturation (HSL)39.59%
Lightness48.04%
Dominant channelBlue
Hex per channelR 55 · G 4A · B AB

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Every value on this page was computed from “554aab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.