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Recognised as Colour

#1287FE

  • #1287FE
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1287FE is a blue with RGB values 18, 135, 254 and HSL 210°, 99%, 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

#1287FE#1287FE
HEX#1287FE
RGBrgb(18, 135, 254)
RGB (0–1)0.0706, 0.5294, 0.9961
RGB percentages7.1%, 52.9%, 99.6%
HSLhsl(210.3, 99.2%, 53.3%)
HSV / HSBhsv(210.3, 92.9%, 99.6%)
CMYK92.9%, 46.9%, 0%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,214,462
CSS custom property--colour: #1287FE;

Brightness & contrast

Relative luminance0.24612WCAG 2.x, 0 is black and 1 is white
Perceived brightness134.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.92:1
Contrast with white3.55:1WCAG normal text: Fail
Contrast with black5.92:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#ED7801

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4192FFno red cones; affects about 1% of men; ΔE 7.7 from the original
Deuteranopia#007FFCno 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 64.7 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 text5.92:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 6.5Royal blue · ΔE 14.8Cornflower blue · ΔE 19.3Slate blue · ΔE 26.1Medium slateblue · ΔE 27Medium purple · ΔE 28.1
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 6.51, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FE8912
Analogous#12FDFE, #1312FE
Triadic#FE1287, #87FE12
Split complementary#FE1312, #FDFE12
Tetradic#FE12FD, #FE8912, #12FE13

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DDEEFF
Lighter +30%#AAD4FF
Lighter +20%#78BAFE
Lighter +10%#45A1FE
Darker −10%#016EDC
Darker −20%#0154A9
Darker −30%#003B77
Darker −40%#002244
More saturated +25%#1187FF
Less saturated −25%#3087E0

Channel breakdown

R18
G135
B254
Red18 (7.1%)
Green135 (52.9%)
Blue254 (99.6%)
Hue210.25°
Saturation (HSL)99.16%
Lightness53.33%
Dominant channelBlue
Hex per channelR 12 · G 87 · B FE

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Every value on this page was computed from “1287fe” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.