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Recognised as Colour

#588CE9

  • #588CE9
  • Blue
  • Dark
  • Nearest: Cornflower blue

#588CE9 is a blue with RGB values 88, 140, 233 and HSL 218°, 77%, 63%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#588CE9#588CE9
HEX#588CE9
RGBrgb(88, 140, 233)
RGB (0–1)0.3451, 0.549, 0.9137
RGB percentages34.5%, 54.9%, 91.4%
HSLhsl(218.5, 76.7%, 62.9%)
HSV / HSBhsv(218.5, 62.2%, 91.4%)
CMYK62.2%, 39.9%, 0%, 8.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,803,241
CSS custom property--colour: #588CE9;

Brightness & contrast

Relative luminance0.26714WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.34:1
Contrast with white3.31:1WCAG normal text: Fail
Contrast with black6.34:1WCAG normal text: AA
Greyscale equivalent#888888
Inverted#A77316

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6394EDno red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#4E87E7no green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#00A1AFno blue cones; rare, and affects men and women equally; ΔE 53.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.31:1WCAG large text: AA
Contrast with black, large text6.34:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 4.7Dodgerblue · ΔE 11.2Royal blue · ΔE 22.8Steel blue · ΔE 25.9Medium purple · ΔE 26.1Slate blue · ΔE 28.8
Nearest named CSS colourCornflower blue (#6495ED)ΔE 4.7, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E9B558
Analogous#58D5E9, #6D58E9
Triadic#E9588C, #8CE958
Split complementary#E96C58, #D4E958
Tetradic#E958D4, #E9B558, #58E96C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#DFE9FB
Lighter +20%#B2CAF5
Lighter +10%#85ABEF
Darker −10%#2B6DE3
Darker −20%#1956C2
Darker −30%#144294
Darker −40%#0E2E67
More saturated +25%#4286FF
Less saturated −25%#7093D1

Channel breakdown

R88
G140
B233
Red88 (34.5%)
Green140 (54.9%)
Blue233 (91.4%)
Hue218.48°
Saturation (HSL)76.72%
Lightness62.94%
Dominant channelBlue
Hex per channelR 58 · G 8C · B E9

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Every value on this page was computed from “588ce9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.