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Colour

#00498B

  • #00498B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00498B is a blue with RGB values 0, 73, 139 and HSL 208°, 100%, 27%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00498B#00498B
HEX#00498B
RGBrgb(0, 73, 139)
RGB (0–1)0, 0.2863, 0.5451
RGB percentages0%, 28.6%, 54.5%
HSLhsl(208.5, 100%, 27.3%)
HSV / HSBhsv(208.5, 100%, 54.5%)
CMYK100%, 47.5%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer18,827
CSS custom property--colour: #00498B;

Brightness & contrast

Relative luminance0.06629WCAG 2.x, 0 is black and 1 is white
Perceived brightness73 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.03:1
Contrast with white9.03:1WCAG normal text: AAA
Contrast with black2.33:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#FFB674

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#244F8Dno red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#00448Ano green cones; the most common form, about 1% of men; ΔE 4 from the original
Tritanopia#005963no blue cones; rare, and affects men and women equally; ΔE 39.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.03:1WCAG large text: AAA
Contrast with black, large text2.33:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.4Steel blue · ΔE 26.4Midnight blue · ΔE 29.4Cornflower blue · ΔE 31.9Royal blue · ΔE 34.2Slate blue · ΔE 35.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8B4200
Analogous#008B88, #00038B
Triadic#8B0049, #498B00
Split complementary#8B0003, #8B8800
Tetradic#88008B, #8B4200, #038B00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#58B0FF
Lighter +30%#2597FF
Lighter +20%#007FF1
Lighter +10%#0064BE
Darker −10%#002E58
Darker −20%#001325
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00498B
Less saturated −25%#11487A

Channel breakdown

R0
G73
B139
Red0 (0%)
Green73 (28.6%)
Blue139 (54.5%)
Hue208.49°
Saturation (HSL)100%
Lightness27.25%
Dominant channelBlue
Hex per channelR 00 · G 49 · B 8B

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Every value on this page was computed from “00498b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.