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Recognised as Colour

#055ACF

  • #055ACF
  • Blue
  • Dark
  • Nearest: Royal blue

#055ACF is a blue with RGB values 5, 90, 207 and HSL 215°, 95%, 42%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#055ACF#055ACF
HEX#055ACF
RGBrgb(5, 90, 207)
RGB (0–1)0.0196, 0.3529, 0.8118
RGB percentages2%, 35.3%, 81.2%
HSLhsl(214.8, 95.3%, 41.6%)
HSV / HSBhsv(214.8, 97.6%, 81.2%)
CMYK97.6%, 56.5%, 0%, 18.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer350,927
CSS custom property--colour: #055ACF;

Brightness & contrast

Relative luminance0.1185WCAG 2.x, 0 is black and 1 is white
Perceived brightness98.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.23:1
Contrast with white6.23:1WCAG normal text: AA
Contrast with black3.37:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#FAA530

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0069D3no red cones; affects about 1% of men; ΔE 10.6 from the original
Deuteranopia#0059CDno green cones; the most common form, about 1% of men; ΔE 0.7 from the original
Tritanopia#00788Cno blue cones; rare, and affects men and women equally; ΔE 65.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.23:1WCAG large text: AAA
Contrast with black, large text3.37:1WCAG large text: AA

Named colours

Royal blue · ΔE 7.1Slate blue · ΔE 15Medium slateblue · ΔE 20Dodgerblue · ΔE 23.6Medium purple · ΔE 24.6Dark slateblue · ΔE 26.2
Nearest named CSS colourRoyal blue (#4169E1)ΔE 7.15, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CF7A05
Analogous#05BFCF, #1505CF
Triadic#CF055A, #5ACF05
Split complementary#CF1505, #BFCF05
Tetradic#CF05BF, #CF7A05, #05CF15

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A3C9FD
Lighter +30%#71ACFC
Lighter +20%#408EFA
Lighter +10%#0E71F9
Darker −10%#04449D
Darker −20%#032F6B
Darker −30%#01193A
Darker −40%#000308
More saturated +25%#0059D4
Less saturated −25%#205EB4

Channel breakdown

R5
G90
B207
Red5 (2%)
Green90 (35.3%)
Blue207 (81.2%)
Hue214.75°
Saturation (HSL)95.28%
Lightness41.57%
Dominant channelBlue
Hex per channelR 05 · G 5A · B CF

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Every value on this page was computed from “055acf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.