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Colour

#4B91BA

  • #4B91BA
  • Blue
  • Dark
  • Nearest: Steel blue

#4B91BA is a blue with RGB values 75, 145, 186 and HSL 202°, 45%, 51%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#4B91BA#4B91BA
HEX#4B91BA
RGBrgb(75, 145, 186)
RGB (0–1)0.2941, 0.5686, 0.7294
RGB percentages29.4%, 56.9%, 72.9%
HSLhsl(202.2, 44.6%, 51.2%)
HSV / HSBhsv(202.2, 59.7%, 72.9%)
CMYK59.7%, 22%, 0%, 27.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,952,506
CSS custom property--colour: #4B91BA;

Brightness & contrast

Relative luminance0.25292WCAG 2.x, 0 is black and 1 is white
Perceived brightness134 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.06:1
Contrast with white3.47:1WCAG normal text: Fail
Contrast with black6.06:1WCAG normal text: AA
Greyscale equivalent#858585
Inverted#B46E45

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7E90BCno red cones; affects about 1% of men; ΔE 14.4 from the original
Deuteranopia#6F85B9no green cones; the most common form, about 1% of men; ΔE 15.4 from the original
Tritanopia#009C9Fno blue cones; rare, and affects men and women equally; ΔE 28.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.47:1WCAG large text: AA
Contrast with black, large text6.06:1WCAG large text: AAA

Named colours

Steel blue · ΔE 8.6Light slate grey · ΔE 18.5Slate grey · ΔE 19.5Light skyblue · ΔE 22.4Deep skyblue · ΔE 22.5Cadetblue · ΔE 23.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.57, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BA744B
Analogous#4BBAAC, #4B59BA
Triadic#BA4B91, #91BA4B
Split complementary#BA4B59, #BAAC4B
Tetradic#AC4BBA, #BA744B, #59BA4B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DEEBF3
Lighter +30%#BAD5E4
Lighter +20%#95BED6
Lighter +10%#70A8C8
Darker −10%#3A7598
Darker −20%#2C5973
Darker −30%#1E3C4E
Darker −40%#102029
More saturated +25%#2C99D9
Less saturated −25%#6A899B

Channel breakdown

R75
G145
B186
Red75 (29.4%)
Green145 (56.9%)
Blue186 (72.9%)
Hue202.16°
Saturation (HSL)44.58%
Lightness51.18%
Dominant channelBlue
Hex per channelR 4B · G 91 · B BA

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Every value on this page was computed from “4b91ba” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.