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Recognised as Colour

#3D5478

  • #3D5478
  • Blue
  • Dark
  • Nearest: Steel blue

#3D5478 is a blue with RGB values 61, 84, 120 and HSL 217°, 33%, 35%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#3D5478#3D5478
HEX#3D5478
RGBrgb(61, 84, 120)
RGB (0–1)0.2392, 0.3294, 0.4706
RGB percentages23.9%, 32.9%, 47.1%
HSLhsl(216.6, 32.6%, 35.5%)
HSV / HSBhsv(216.6, 49.2%, 47.1%)
CMYK49.2%, 30%, 0%, 52.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,019,320
CSS custom property--colour: #3D5478;

Brightness & contrast

Relative luminance0.08689WCAG 2.x, 0 is black and 1 is white
Perceived brightness83 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.67:1
Contrast with white7.67:1WCAG normal text: AAA
Contrast with black2.74:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#C2AB87

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#46567Ano red cones; affects about 1% of men; ΔE 2.4 from the original
Deuteranopia#405177no green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#255C61no blue cones; rare, and affects men and women equally; ΔE 23.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.67:1WCAG large text: AAA
Contrast with black, large text2.74:1WCAG large text: Fail

Named colours

Steel blue · ΔE 20.3Slate grey · ΔE 21.9Dark slate grey · ΔE 24.2Light slate grey · ΔE 24.2Dim grey · ΔE 25Gray · ΔE 29.5
Nearest named CSS colourSteel blue (#4682B4)ΔE 20.26, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#78613D
Analogous#3D7278, #443D78
Triadic#783D54, #54783D
Split complementary#78443D, #72783D
Tetradic#783D72, #78613D, #3D7844

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ACBCD5
Lighter +30%#8AA1C4
Lighter +20%#6985B2
Lighter +10%#4E6C9A
Darker −10%#2C3C56
Darker −20%#1B2534
Darker −30%#090D13
Darker −40%#000000
More saturated +25%#264F8F
Less saturated −25%#545961

Channel breakdown

R61
G84
B120
Red61 (23.9%)
Green84 (32.9%)
Blue120 (47.1%)
Hue216.61°
Saturation (HSL)32.6%
Lightness35.49%
Dominant channelBlue
Hex per channelR 3D · G 54 · B 78

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Every value on this page was computed from “3d5478” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.