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Colour

#5191ED

  • #5191ED
  • Blue
  • Dark
  • Nearest: Cornflower blue

#5191ED is a blue with RGB values 81, 145, 237 and HSL 215°, 81%, 62%. It is a dark colour, so black text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#5191ED#5191ED
HEX#5191ED
RGBrgb(81, 145, 237)
RGB (0–1)0.3176, 0.5686, 0.9294
RGB percentages31.8%, 56.9%, 92.9%
HSLhsl(215.4, 81.3%, 62.4%)
HSV / HSBhsv(215.4, 65.8%, 92.9%)
CMYK65.8%, 38.8%, 0%, 7.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,345,773
CSS custom property--colour: #5191ED;

Brightness & contrast

Relative luminance0.28115WCAG 2.x, 0 is black and 1 is white
Perceived brightness143.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.62:1
Contrast with white3.17:1WCAG normal text: Fail
Contrast with black6.62:1WCAG normal text: AA
Greyscale equivalent#8A8A8A
Inverted#AE6E12

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6898F1no red cones; affects about 1% of men; ΔE 4.5 from the original
Deuteranopia#508AEBno green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#00A6B3no blue cones; rare, and affects men and women equally; ΔE 52.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.17:1WCAG large text: AA
Contrast with black, large text6.62:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 3.8Dodgerblue · ΔE 11.1Steel blue · ΔE 24.9Royal blue · ΔE 25.2Medium purple · ΔE 29Deep skyblue · ΔE 30.5
Nearest named CSS colourCornflower blue (#6495ED)ΔE 3.82, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EDAD51
Analogous#51DFED, #5F51ED
Triadic#ED5191, #91ED51
Split complementary#ED5F51, #DFED51
Tetradic#ED51DF, #EDAD51, #51ED5F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DCE9FB
Lighter +20%#ADCBF7
Lighter +10%#7FAEF2
Darker −10%#2374E8
Darker −20%#145CC4
Darker −30%#0F4696
Darker −40%#0B3167
More saturated +25%#3F8EFF
Less saturated −25%#6995D5

Channel breakdown

R81
G145
B237
Red81 (31.8%)
Green145 (56.9%)
Blue237 (92.9%)
Hue215.38°
Saturation (HSL)81.25%
Lightness62.35%
Dominant channelBlue
Hex per channelR 51 · G 91 · B ED

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Every value on this page was computed from “5191ed” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.