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Recognised as Colour

#1288FD

  • #1288FD
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1288FD is a blue with RGB values 18, 136, 253 and HSL 210°, 98%, 53%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1288FD#1288FD
HEX#1288FD
RGBrgb(18, 136, 253)
RGB (0–1)0.0706, 0.5333, 0.9922
RGB percentages7.1%, 53.3%, 99.2%
HSLhsl(209.9, 98.3%, 53.1%)
HSV / HSBhsv(209.9, 92.9%, 99.2%)
CMYK92.9%, 46.2%, 0%, 0.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,214,717
CSS custom property--colour: #1288FD;

Brightness & contrast

Relative luminance0.24829WCAG 2.x, 0 is black and 1 is white
Perceived brightness135.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.97:1
Contrast with white3.52:1WCAG normal text: Fail
Contrast with black5.97:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#ED7702

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4593FFno red cones; affects about 1% of men; ΔE 7.3 from the original
Deuteranopia#007FFBno green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#00A4B6no blue cones; rare, and affects men and women equally; ΔE 63.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.52:1WCAG large text: AA
Contrast with black, large text5.97:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 5.2Royal blue · ΔE 15.7Cornflower blue · ΔE 18.2Slate blue · ΔE 26.7Medium slateblue · ΔE 28Medium purple · ΔE 28.4
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 5.22, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FD8712
Analogous#12FDFC, #1213FD
Triadic#FD1288, #88FD12
Split complementary#FD1213, #FDFC12
Tetradic#FC12FD, #FD8712, #13FD12

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DCEEFF
Lighter +30%#AAD4FE
Lighter +20%#77BBFE
Lighter +10%#45A1FD
Darker −10%#026EDA
Darker −20%#0155A8
Darker −30%#013B75
Darker −40%#012242
More saturated +25%#1088FF
Less saturated −25%#3088DF

Channel breakdown

R18
G136
B253
Red18 (7.1%)
Green136 (53.3%)
Blue253 (99.2%)
Hue209.87°
Saturation (HSL)98.33%
Lightness53.14%
Dominant channelBlue
Hex per channelR 12 · G 88 · B FD

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Every value on this page was computed from “1288fd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.