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Recognised as Colour

#553FD2

  • #553FD2
  • Blue
  • Dark
  • Nearest: Medium slateblue

#553FD2 is a blue with RGB values 85, 63, 210 and HSL 249°, 62%, 54%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#553FD2#553FD2
HEX#553FD2
RGBrgb(85, 63, 210)
RGB (0–1)0.3333, 0.2471, 0.8235
RGB percentages33.3%, 24.7%, 82.4%
HSLhsl(249, 62%, 53.5%)
HSV / HSBhsv(249, 70%, 82.4%)
CMYK59.5%, 70%, 0%, 17.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,586,898
CSS custom property--colour: #553FD2;

Brightness & contrast

Relative luminance0.10139WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.94:1
Contrast with white6.94:1WCAG normal text: AA
Contrast with black3.03:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#AAC02D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005FD6no red cones; affects about 1% of men; ΔE 26.5 from the original
Deuteranopia#0054CFno green cones; the most common form, about 1% of men; ΔE 21.5 from the original
Tritanopia#006784no blue cones; rare, and affects men and women equally; ΔE 80.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.94:1WCAG large text: AAA
Contrast with black, large text3.03:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 17.8Dark orchid · ΔE 20.7Blue violet · ΔE 21Slate blue · ΔE 21.2Dark blue · ΔE 23.7Royal blue · ΔE 26.1
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 17.84, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BCD23F
Analogous#3F72D2, #9E3FD2
Triadic#D2553F, #3FD255
Split complementary#D29F3F, #72D23F
Tetradic#D23F73, #BCD23F, #3FD29F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E7E4F9
Lighter +30%#C3BBEF
Lighter +20%#9E92E5
Lighter +10%#7A68DC
Darker −10%#3F2AB4
Darker −20%#30208B
Darker −30%#221761
Darker −40%#140D38
More saturated +25%#4021F0
Less saturated −25%#6A5DB4

Channel breakdown

R85
G63
B210
Red85 (33.3%)
Green63 (24.7%)
Blue210 (82.4%)
Hue248.98°
Saturation (HSL)62.03%
Lightness53.53%
Dominant channelBlue
Hex per channelR 55 · G 3F · B D2

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Every value on this page was computed from “553fd2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.