Recognised as Colour

#1287FD

#1287FD
Blue
Dark
Nearest: Dodgerblue

#1287FD is a blue with RGB values 18, 135, 253 and HSL 210°, 98%, 53%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1287FD#1287FD

HEX#1287FD

RGBrgb(18, 135, 253)

RGB (0–1)0.0706, 0.5294, 0.9922

RGB percentages7.1%, 52.9%, 99.2%

HSLhsl(210.1, 98.3%, 53.1%)

HSV / HSBhsv(210.1, 92.9%, 99.2%)

CMYK92.9%, 46.6%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,214,461

CSS custom property--colour: #1287FD;

Brightness & contrast

Relative luminance0.24548WCAG 2.x, 0 is black and 1 is white

Perceived brightness134.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.91:1

Contrast with white3.55:1WCAG normal text: Fail

Contrast with black5.91:1WCAG normal text: AA

Greyscale equivalent#777777

Inverted#ED7802

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4292FFno red cones; affects about 1% of men; ΔE 7.2 from the original

Deuteranopia#007FFBno green cones; the most common form, about 1% of men; ΔE 5.3 from the original

Tritanopia#00A4B6no blue cones; rare, and affects men and women equally; ΔE 64.1 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text3.55:1WCAG large text: AA

Contrast with black, large text5.91:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 6 Royal blue · ΔE 15 Cornflower blue · ΔE 18.8 Slate blue · ΔE 26.2 Medium slateblue · ΔE 27.3 Medium purple · ΔE 28.1

Nearest named CSS colourDodgerblue (#1E90FF)ΔE 6.01, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FD8812

Analogous#12FCFD, #1312FD

Triadic#FD1287, #87FD12

Split complementary#FD1312, #FCFD12

Tetradic#FD12FC, #FD8812, #12FD13

Tints, shades & saturation

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

Lighter +40%#DCEDFF

Lighter +30%#AAD4FE

Lighter +20%#77BAFE

Lighter +10%#45A1FD

Darker −10%#026EDA

Darker −20%#0154A8

Darker −30%#013B75

Darker −40%#012142

More saturated +25%#1087FF

Less saturated −25%#3087DF

Channel breakdown

R18

G135

B253

Red18 (7.1%)

Green135 (52.9%)

Blue253 (99.2%)

Hue210.13°

Saturation (HSL)98.33%

Lightness53.14%

Dominant channelBlue

Hex per channelR 12 · G 87 · B FD

Keep nerding

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

#1287FD

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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