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Recognised as Colour

#4063A4

  • #4063A4
  • Blue
  • Dark
  • Nearest: Steel blue

#4063A4 is a blue with RGB values 64, 99, 164 and HSL 219°, 44%, 45%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4063A4#4063A4
HEX#4063A4
RGBrgb(64, 99, 164)
RGB (0–1)0.251, 0.3882, 0.6431
RGB percentages25.1%, 38.8%, 64.3%
HSLhsl(219, 43.9%, 44.7%)
HSV / HSBhsv(219, 61%, 64.3%)
CMYK61%, 39.6%, 0%, 35.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,219,812
CSS custom property--colour: #4063A4;

Brightness & contrast

Relative luminance0.12694WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.93:1
Contrast with white5.93:1WCAG normal text: AA
Contrast with black3.54:1WCAG normal text: Fail
Greyscale equivalent#606060
Inverted#BF9C5B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4769A7no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#3960A3no green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#00727Bno blue cones; rare, and affects men and women equally; ΔE 41.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.93:1WCAG large text: AAA
Contrast with black, large text3.54:1WCAG large text: AA

Named colours

Steel blue · ΔE 17.2Dark slateblue · ΔE 21.5Cornflower blue · ΔE 22.3Dodgerblue · ΔE 29.9Slate grey · ΔE 31.9Royal blue · ΔE 32.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 17.25, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A48140
Analogous#4095A4, #4F40A4
Triadic#A44063, #63A440
Split complementary#A44F40, #95A440
Tetradic#A44095, #A48140, #40A44F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C7D3E9
Lighter +30%#A2B6DB
Lighter +20%#7E99CC
Lighter +10%#597CBE
Darker −10%#324D7F
Darker −20%#23375B
Darker −30%#152136
Darker −40%#070A11
More saturated +25%#245AC1
Less saturated −25%#5D6C88

Channel breakdown

R64
G99
B164
Red64 (25.1%)
Green99 (38.8%)
Blue164 (64.3%)
Hue219°
Saturation (HSL)43.86%
Lightness44.71%
Dominant channelBlue
Hex per channelR 40 · G 63 · B A4

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Every value on this page was computed from “4063a4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.