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Recognised as Colour

#5787DA

  • #5787DA
  • Blue
  • Dark
  • Nearest: Cornflower blue

#5787DA is a blue with RGB values 87, 135, 218 and HSL 218°, 64%, 60%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#5787DA#5787DA
HEX#5787DA
RGBrgb(87, 135, 218)
RGB (0–1)0.3412, 0.5294, 0.8549
RGB percentages34.1%, 52.9%, 85.5%
HSLhsl(218, 63.9%, 59.8%)
HSV / HSBhsv(218, 60.1%, 85.5%)
CMYK60.1%, 38.1%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,736,410
CSS custom property--colour: #5787DA;

Brightness & contrast

Relative luminance0.24416WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.88:1
Contrast with white3.57:1WCAG normal text: Fail
Contrast with black5.88:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#A87825

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#638EDDno red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#5282D8no green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#009AA6no blue cones; rare, and affects men and women equally; ΔE 49.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.57:1WCAG large text: AA
Contrast with black, large text5.88:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 5.8Dodgerblue · ΔE 16.3Steel blue · ΔE 20.4Royal blue · ΔE 26.4Medium purple · ΔE 28.1Slate blue · ΔE 31.1
Nearest named CSS colourCornflower blue (#6495ED)ΔE 5.78, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DAAA57
Analogous#57C9DA, #6857DA
Triadic#DA5787, #87DA57
Split complementary#DA6857, #C9DA57
Tetradic#DA57C9, #DAAA57, #57DA68

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FEFEFF
Lighter +30%#D4E1F6
Lighter +20%#ABC3EC
Lighter +10%#81A5E3
Darker −10%#2E69D0
Darker −20%#2554A6
Darker −30%#1B3F7D
Darker −40%#122A53
More saturated +25%#3D80F4
Less saturated −25%#718EC0

Channel breakdown

R87
G135
B218
Red87 (34.1%)
Green135 (52.9%)
Blue218 (85.5%)
Hue218.02°
Saturation (HSL)63.9%
Lightness59.8%
Dominant channelBlue
Hex per channelR 57 · G 87 · B DA

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Every value on this page was computed from “5787da” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.