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Recognised as Colour

#003A64

  • #003A64
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003A64 is a blue with RGB values 0, 58, 100 and HSL 205°, 100%, 20%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003A64#003A64
HEX#003A64
RGBrgb(0, 58, 100)
RGB (0–1)0, 0.2275, 0.3922
RGB percentages0%, 22.7%, 39.2%
HSLhsl(205.2, 100%, 19.6%)
HSV / HSBhsv(205.2, 100%, 39.2%)
CMYK100%, 42%, 0%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,948
CSS custom property--colour: #003A64;

Brightness & contrast

Relative luminance0.03946WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.74:1
Contrast with white11.74:1WCAG normal text: AAA
Contrast with black1.79:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#FFC59B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#253C66no red cones; affects about 1% of men; ΔE 5.4 from the original
Deuteranopia#153463no green cones; the most common form, about 1% of men; ΔE 6.5 from the original
Tritanopia#00444Ano blue cones; rare, and affects men and women equally; ΔE 26.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.74:1WCAG large text: AAA
Contrast with black, large text1.79:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 29.1Steel blue · ΔE 29.5Dark slate grey · ΔE 29.7Slate grey · ΔE 35Dim grey · ΔE 36.1Light slate grey · ΔE 37.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 29.07, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#642A00
Analogous#00645C, #000864
Triadic#64003A, #3A6400
Split complementary#640008, #645C00
Tetradic#5C0064, #642A00, #086400

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#31A8FF
Lighter +30%#0093FD
Lighter +20%#0075CA
Lighter +10%#005897
Darker −10%#001C31
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003A64
Less saturated −25%#0C3858

Channel breakdown

R0
G58
B100
Red0 (0%)
Green58 (22.7%)
Blue100 (39.2%)
Hue205.2°
Saturation (HSL)100%
Lightness19.61%
Dominant channelBlue
Hex per channelR 00 · G 3A · B 64

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Every value on this page was computed from “003a64” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.