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Recognised as Colour

#004897

  • #004897
  • Blue
  • Dark
  • Nearest: Dark slateblue

#004897 is a blue with RGB values 0, 72, 151 and HSL 211°, 100%, 30%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#004897#004897
HEX#004897
RGBrgb(0, 72, 151)
RGB (0–1)0, 0.2824, 0.5922
RGB percentages0%, 28.2%, 59.2%
HSLhsl(211.4, 100%, 29.6%)
HSV / HSBhsv(211.4, 100%, 59.2%)
CMYK100%, 52.3%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer18,583
CSS custom property--colour: #004897;

Brightness & contrast

Relative luminance0.06869WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.85:1
Contrast with white8.85:1WCAG normal text: AAA
Contrast with black2.37:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#FFB768

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0F519Ano red cones; affects about 1% of men; ΔE 6.1 from the original
Deuteranopia#004495no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#005C68no blue cones; rare, and affects men and women equally; ΔE 47.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.85:1WCAG large text: AAA
Contrast with black, large text2.37:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.2Midnight blue · ΔE 24.1Royal blue · ΔE 26.7Slate blue · ΔE 28.1Rebecca purple · ΔE 29.5Cornflower blue · ΔE 30.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.15, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#974F00
Analogous#009397, #040097
Triadic#970048, #489700
Split complementary#970400, #939700
Tetradic#970093, #974F00, #009704

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#64AEFF
Lighter +30%#3193FF
Lighter +20%#0079FD
Lighter +10%#0060CA
Darker −10%#003064
Darker −20%#001731
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004897
Less saturated −25%#134984

Channel breakdown

R0
G72
B151
Red0 (0%)
Green72 (28.2%)
Blue151 (59.2%)
Hue211.39°
Saturation (HSL)100%
Lightness29.61%
Dominant channelBlue
Hex per channelR 00 · G 48 · B 97

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Every value on this page was computed from “hex 004897” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.