Colour

#5191B2

#5191B2
Blue
Dark
Nearest: Steel blue

#5191B2 is a blue with RGB values 81, 145, 178 and HSL 200°, 39%, 51%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#5191B2#5191B2

HEX#5191B2

RGBrgb(81, 145, 178)

RGB (0–1)0.3176, 0.5686, 0.698

RGB percentages31.8%, 56.9%, 69.8%

HSLhsl(200.4, 38.6%, 50.8%)

HSV / HSBhsv(200.4, 54.5%, 69.8%)

CMYK54.5%, 18.5%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,345,714

CSS custom property--colour: #5191B2;

Brightness & contrast

Relative luminance0.25214WCAG 2.x, 0 is black and 1 is white

Perceived brightness133.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.04:1

Contrast with white3.48:1WCAG normal text: Fail

Contrast with black6.04:1WCAG normal text: AA

Greyscale equivalent#868686

Inverted#AE6E4D

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#818FB4no red cones; affects about 1% of men; ΔE 14.9 from the original

Deuteranopia#7385B2no green cones; the most common form, about 1% of men; ΔE 15.9 from the original

Tritanopia#079A9Cno blue cones; rare, and affects men and women equally; ΔE 24.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.48:1WCAG large text: AA

Contrast with black, large text6.04:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.1 Light slate grey · ΔE 15.3 Slate grey · ΔE 16.3 Cadetblue · ΔE 18.7 Sky blue · ΔE 22.4 Light skyblue · ΔE 23

Nearest named CSS colourSteel blue (#4682B4)ΔE 12.06, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#B27251

Analogous#51B2A3, #5160B2

Triadic#B25191, #91B251

Split complementary#B25160, #B2A351

Tetradic#A351B2, #B27251, #60B251

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#DEEAF1

Lighter +30%#BBD4E1

Lighter +20%#98BED1

Lighter +10%#74A7C2

Darker −10%#407590

Darker −20%#30586D

Darker −30%#213C49

Darker −40%#111F26

More saturated +25%#329BD1

Less saturated −25%#708793

Channel breakdown

R81

G145

B178

Red81 (31.8%)

Green145 (56.9%)

Blue178 (69.8%)

Hue200.41°

Saturation (HSL)38.65%

Lightness50.78%

Dominant channelBlue

Hex per channelR 51 · G 91 · B B2

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#5191B2

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

Nerdulate something else