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Recognised as Colour

#004B99

  • #004B99
  • Blue
  • Dark
  • Nearest: Dark slateblue

#004B99 is a blue with RGB values 0, 75, 153 and HSL 211°, 100%, 30%. It is a dark colour, so white text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#004B99#004B99
HEX#004B99
RGBrgb(0, 75, 153)
RGB (0–1)0, 0.2941, 0.6
RGB percentages0%, 29.4%, 60%
HSLhsl(210.6, 100%, 30%)
HSV / HSBhsv(210.6, 100%, 60%)
CMYK100%, 51%, 0%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,353
CSS custom property--colour: #004B99;

Brightness & contrast

Relative luminance0.07332WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.51:1
Contrast with white8.51:1WCAG normal text: AAA
Contrast with black2.47:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#FFB466

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#17539Cno red cones; affects about 1% of men; ΔE 5.1 from the original
Deuteranopia#004797no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#005E6Ano blue cones; rare, and affects men and women equally; ΔE 46.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.51:1WCAG large text: AAA
Contrast with black, large text2.47:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.1Midnight blue · ΔE 25.7Royal blue · ΔE 27Slate blue · ΔE 28.7Cornflower blue · ΔE 29.5Steel blue · ΔE 30.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#994E00
Analogous#009799, #020099
Triadic#99004B, #4B9900
Split complementary#990200, #979900
Tetradic#990097, #994E00, #009902

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#66B1FF
Lighter +30%#3397FF
Lighter +20%#007DFF
Lighter +10%#0064CC
Darker −10%#003266
Darker −20%#001933
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004B99
Less saturated −25%#134B86

Channel breakdown

R0
G75
B153
Red0 (0%)
Green75 (29.4%)
Blue153 (60%)
Hue210.59°
Saturation (HSL)100%
Lightness30%
Dominant channelBlue
Hex per channelR 00 · G 4B · B 99

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Every value on this page was computed from “004b99” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.