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Recognised as Colour

#04489A

  • #04489A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#04489A is a blue with RGB values 4, 72, 154 and HSL 213°, 95%, 31%. 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

#04489A#04489A
HEX#04489A
RGBrgb(4, 72, 154)
RGB (0–1)0.0157, 0.2824, 0.6039
RGB percentages1.6%, 28.2%, 60.4%
HSLhsl(212.8, 94.9%, 31%)
HSV / HSBhsv(212.8, 97.4%, 60.4%)
CMYK97.4%, 53.2%, 0%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer280,730
CSS custom property--colour: #04489A;

Brightness & contrast

Relative luminance0.06994WCAG 2.x, 0 is black and 1 is white
Perceived brightness75.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.75:1
Contrast with white8.75:1WCAG normal text: AAA
Contrast with black2.4:1WCAG normal text: Fail
Greyscale equivalent#3F3F3F
Inverted#FBB765

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#07519Dno red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#004598no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#005C6Ano blue cones; rare, and affects men and women equally; ΔE 48.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.75:1WCAG large text: AAA
Contrast with black, large text2.4:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.6Midnight blue · ΔE 23.1Royal blue · ΔE 25Slate blue · ΔE 26.3Rebecca purple · ΔE 28.1Cornflower blue · ΔE 30.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.61, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9A5604
Analogous#04939A, #0B049A
Triadic#9A0448, #489A04
Split complementary#9A0B04, #939A04
Tetradic#9A0493, #9A5604, #049A0B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6FAEFB
Lighter +30%#3D93FA
Lighter +20%#0B77F9
Lighter +10%#055FCC
Darker −10%#033168
Darker −20%#011A37
Darker −30%#000205
Darker −40%#000000
More saturated +25%#00489E
Less saturated −25%#184A86

Channel breakdown

R4
G72
B154
Red4 (1.6%)
Green72 (28.2%)
Blue154 (60.4%)
Hue212.8°
Saturation (HSL)94.94%
Lightness30.98%
Dominant channelBlue
Hex per channelR 04 · G 48 · B 9A

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Every value on this page was computed from “04489a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.