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Recognised as Colour

#3963A7

  • #3963A7
  • Blue
  • Dark
  • Nearest: Steel blue

#3963A7 is a blue with RGB values 57, 99, 167 and HSL 217°, 49%, 44%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#3963A7#3963A7
HEX#3963A7
RGBrgb(57, 99, 167)
RGB (0–1)0.2235, 0.3882, 0.6549
RGB percentages22.4%, 38.8%, 65.5%
HSLhsl(217.1, 49.1%, 43.9%)
HSV / HSBhsv(217.1, 65.9%, 65.5%)
CMYK65.9%, 40.7%, 0%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,761,063
CSS custom property--colour: #3963A7;

Brightness & contrast

Relative luminance0.12584WCAG 2.x, 0 is black and 1 is white
Perceived brightness99.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.97:1
Contrast with white5.97:1WCAG normal text: AA
Contrast with black3.52:1WCAG normal text: Fail
Greyscale equivalent#5F5F5F
Inverted#C69C58

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4469AAno red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#345FA6no green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#00737Dno blue cones; rare, and affects men and women equally; ΔE 41.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.97:1WCAG large text: AAA
Contrast with black, large text3.52:1WCAG large text: AA

Named colours

Steel blue · ΔE 18.1Dark slateblue · ΔE 21.4Cornflower blue · ΔE 21.5Dodgerblue · ΔE 28.4Royal blue · ΔE 31Medium purple · ΔE 32.9
Nearest named CSS colourSteel blue (#4682B4)ΔE 18.06, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A77D39
Analogous#399AA7, #4639A7
Triadic#A73963, #63A739
Split complementary#A74639, #9AA739
Tetradic#A7399A, #A77D39, #39A746

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2D1EA
Lighter +30%#9CB5DD
Lighter +20%#7698D0
Lighter +10%#507CC3
Darker −10%#2C4C81
Darker −20%#1F365B
Darker −30%#121F35
Darker −40%#05090F
More saturated +25%#1D5CC3
Less saturated −25%#556A8B

Channel breakdown

R57
G99
B167
Red57 (22.4%)
Green99 (38.8%)
Blue167 (65.5%)
Hue217.09°
Saturation (HSL)49.11%
Lightness43.92%
Dominant channelBlue
Hex per channelR 39 · G 63 · B A7

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Every value on this page was computed from “3963a7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.