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Recognised as Colour

#00479D

  • #00479D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00479D is a blue with RGB values 0, 71, 157 and HSL 213°, 100%, 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

#00479D#00479D
HEX#00479D
RGBrgb(0, 71, 157)
RGB (0–1)0, 0.2784, 0.6157
RGB percentages0%, 27.8%, 61.6%
HSLhsl(212.9, 100%, 30.8%)
HSV / HSBhsv(212.9, 100%, 61.6%)
CMYK100%, 54.8%, 0%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer18,333
CSS custom property--colour: #00479D;

Brightness & contrast

Relative luminance0.06941WCAG 2.x, 0 is black and 1 is white
Perceived brightness76 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.79:1
Contrast with white8.79:1WCAG normal text: AAA
Contrast with black2.39:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#FFB862

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051A0no red cones; affects about 1% of men; ΔE 7.2 from the original
Deuteranopia#00449Bno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#005D6Bno blue cones; rare, and affects men and women equally; ΔE 51 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.79:1WCAG large text: AAA
Contrast with black, large text2.39:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.6Midnight blue · ΔE 21.9Royal blue · ΔE 23.1Slate blue · ΔE 24.4Rebecca purple · ΔE 26.6Dodgerblue · ΔE 30.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.57, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9D5600
Analogous#00959D, #08009D
Triadic#9D0047, #479D00
Split complementary#9D0800, #959D00
Tetradic#9D0095, #9D5600, #009D08

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6AADFF
Lighter +30%#3791FF
Lighter +20%#0476FF
Lighter +10%#005ED0
Darker −10%#00306A
Darker −20%#001937
Darker −30%#000204
Darker −40%#000000
More saturated +25%#00479D
Less saturated −25%#144989

Channel breakdown

R0
G71
B157
Red0 (0%)
Green71 (27.8%)
Blue157 (61.6%)
Hue212.87°
Saturation (HSL)100%
Lightness30.78%
Dominant channelBlue
Hex per channelR 00 · G 47 · B 9D

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Every value on this page was computed from “00479d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.