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Colour

#004990

  • #004990
  • Blue
  • Dark
  • Nearest: Dark slateblue

#004990 is a blue with RGB values 0, 73, 144 and HSL 210°, 100%, 28%. It is a dark colour, so white text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#004990#004990
HEX#004990
RGBrgb(0, 73, 144)
RGB (0–1)0, 0.2863, 0.5647
RGB percentages0%, 28.6%, 56.5%
HSLhsl(209.6, 100%, 28.2%)
HSV / HSBhsv(209.6, 100%, 56.5%)
CMYK100%, 49.3%, 0%, 43.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer18,832
CSS custom property--colour: #004990;

Brightness & contrast

Relative luminance0.06779WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.91:1
Contrast with white8.91:1WCAG normal text: AAA
Contrast with black2.36:1WCAG normal text: Fail
Greyscale equivalent#3F3F3F
Inverted#FFB66F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1E5093no red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#00448Fno green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#005A65no blue cones; rare, and affects men and women equally; ΔE 42.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.91:1WCAG large text: AAA
Contrast with black, large text2.36:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.5Midnight blue · ΔE 27.3Steel blue · ΔE 28.2Cornflower blue · ΔE 31Royal blue · ΔE 31.2Slate blue · ΔE 32.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.46, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#904700
Analogous#00908F, #000190
Triadic#900049, #499000
Split complementary#900001, #908F00
Tetradic#8F0090, #904700, #019000

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5DAFFF
Lighter +30%#2A96FF
Lighter +20%#007DF6
Lighter +10%#0063C3
Darker −10%#002F5D
Darker −20%#00152A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004990
Less saturated −25%#12497E

Channel breakdown

R0
G73
B144
Red0 (0%)
Green73 (28.6%)
Blue144 (56.5%)
Hue209.58°
Saturation (HSL)100%
Lightness28.24%
Dominant channelBlue
Hex per channelR 00 · G 49 · B 90

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Every value on this page was computed from “hex 004990” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.