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Colour

#2787DF

  • #2787DF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#2787DF is a blue with RGB values 39, 135, 223 and HSL 209°, 74%, 51%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#2787DF#2787DF
HEX#2787DF
RGBrgb(39, 135, 223)
RGB (0–1)0.1529, 0.5294, 0.8745
RGB percentages15.3%, 52.9%, 87.5%
HSLhsl(208.7, 74.2%, 51.4%)
HSV / HSBhsv(208.7, 82.5%, 87.5%)
CMYK82.5%, 39.5%, 0%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,590,687
CSS custom property--colour: #2787DF;

Brightness & contrast

Relative luminance0.23087WCAG 2.x, 0 is black and 1 is white
Perceived brightness129.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.62:1
Contrast with white3.74:1WCAG normal text: Fail
Contrast with black5.62:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#D87820

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5C8DE3no red cones; affects about 1% of men; ΔE 7.4 from the original
Deuteranopia#3E7DDDno green cones; the most common form, about 1% of men; ΔE 8.6 from the original
Tritanopia#009CA8no blue cones; rare, and affects men and women equally; ΔE 49.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.74:1WCAG large text: AA
Contrast with black, large text5.62:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 9.1Dodgerblue · ΔE 13.2Steel blue · ΔE 21.9Royal blue · ΔE 26.7Deep skyblue · ΔE 29.5Medium purple · ΔE 32.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 9.14, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DF7F27
Analogous#27DFDB, #272BDF
Triadic#DF2787, #87DF27
Split complementary#DF272B, #DFDB27
Tetradic#DB27DF, #DF7F27, #2BDF27

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9EAF9
Lighter +30%#ACD1F3
Lighter +20%#80B8EC
Lighter +10%#53A0E6
Darker −10%#1B6DB8
Darker −20%#15538B
Darker −30%#0E385F
Darker −40%#071E33
More saturated +25%#0888FE
Less saturated −25%#4686C0

Channel breakdown

R39
G135
B223
Red39 (15.3%)
Green135 (52.9%)
Blue223 (87.5%)
Hue208.7°
Saturation (HSL)74.19%
Lightness51.37%
Dominant channelBlue
Hex per channelR 27 · G 87 · B DF

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Every value on this page was computed from “2787df” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.