Recognised as Colour

#587CDB

#587CDB
Blue
Dark
Nearest: Cornflower blue

#587CDB is a blue with RGB values 88, 124, 219 and HSL 224°, 65%, 60%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#587CDB#587CDB

HEX#587CDB

RGBrgb(88, 124, 219)

RGB (0–1)0.3451, 0.4863, 0.8588

RGB percentages34.5%, 48.6%, 85.9%

HSLhsl(223.5, 64.5%, 60.2%)

HSV / HSBhsv(223.5, 59.8%, 85.9%)

CMYK59.8%, 43.4%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,799,131

CSS custom property--colour: #587CDB;

Brightness & contrast

Relative luminance0.21604WCAG 2.x, 0 is black and 1 is white

Perceived brightness129.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.32:1

Contrast with white3.95:1WCAG normal text: Fail

Contrast with black5.32:1WCAG normal text: AA

Greyscale equivalent#7B7B7B

Inverted#A78324

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5186DFno red cones; affects about 1% of men; ΔE 6.8 from the original

Deuteranopia#3E7BD9no green cones; the most common form, about 1% of men; ΔE 4.8 from the original

Tritanopia#0091A1no blue cones; rare, and affects men and women equally; ΔE 54.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.95:1WCAG large text: AA

Contrast with black, large text5.32:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.2 Dodgerblue · ΔE 13.7 Royal blue · ΔE 17.3 Medium purple · ΔE 20.9 Slate blue · ΔE 22.2 Dark slateblue · ΔE 27

Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.19, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DBB758

Analogous#58BDDB, #7658DB

Triadic#DB587C, #7CDB58

Split complementary#DB7658, #BDDB58

Tetradic#DB58BD, #DBB758, #58DB76

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#D6DFF6

Lighter +20%#ACBEED

Lighter +10%#829DE4

Darker −10%#2E5BD2

Darker −20%#2449A9

Darker −30%#1B377F

Darker −40%#122555

More saturated +25%#3F71F4

Less saturated −25%#7187C2

Channel breakdown

R88

G124

B219

Red88 (34.5%)

Green124 (48.6%)

Blue219 (85.9%)

Hue223.51°

Saturation (HSL)64.53%

Lightness60.2%

Dominant channelBlue

Hex per channelR 58 · G 7C · B DB

Keep nerding

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

#587CDB

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

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