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Recognised as Colour

#4B5D81

  • #4B5D81
  • Blue
  • Dark
  • Nearest: Steel blue

#4B5D81 is a blue with RGB values 75, 93, 129 and HSL 220°, 26%, 40%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4B5D81#4B5D81
HEX#4B5D81
RGBrgb(75, 93, 129)
RGB (0–1)0.2941, 0.3647, 0.5059
RGB percentages29.4%, 36.5%, 50.6%
HSLhsl(220, 26.5%, 40%)
HSV / HSBhsv(220, 41.9%, 50.6%)
CMYK41.9%, 27.9%, 0%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,939,137
CSS custom property--colour: #4B5D81;

Brightness & contrast

Relative luminance0.1091WCAG 2.x, 0 is black and 1 is white
Perceived brightness93 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.6:1
Contrast with white6.6:1WCAG normal text: AA
Contrast with black3.18:1WCAG normal text: Fail
Greyscale equivalent#5C5C5C
Inverted#B4A27E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#506083no red cones; affects about 1% of men; ΔE 1.6 from the original
Deuteranopia#4B5B80no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#39646Ano blue cones; rare, and affects men and women equally; ΔE 21.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.6:1WCAG large text: AAA
Contrast with black, large text3.18:1WCAG large text: AA

Named colours

Steel blue · ΔE 17.9Slate grey · ΔE 18.6Light slate grey · ΔE 20.7Dim grey · ΔE 23.1Dark slate grey · ΔE 25.2Gray · ΔE 26.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 17.85, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#816F4B
Analogous#4B7881, #544B81
Triadic#814B5D, #5D814B
Split complementary#81544B, #78814B
Tetradic#814B78, #816F4B, #4B8154

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BFC8DA
Lighter +30%#9EACC7
Lighter +20%#7E90B4
Lighter +10%#5E74A1
Darker −10%#384661
Darker −20%#262F41
Darker −30%#131720
Darker −40%#000000
More saturated +25%#32559B
Less saturated −25%#656668

Channel breakdown

R75
G93
B129
Red75 (29.4%)
Green93 (36.5%)
Blue129 (50.6%)
Hue220°
Saturation (HSL)26.47%
Lightness40%
Dominant channelBlue
Hex per channelR 4B · G 5D · B 81

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Every value on this page was computed from “4b5d81” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.