Nerdulator> put something in

Recognised as Colour

#1281FB

  • #1281FB
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1281FB is a blue with RGB values 18, 129, 251 and HSL 211°, 97%, 53%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1281FB#1281FB
HEX#1281FB
RGBrgb(18, 129, 251)
RGB (0–1)0.0706, 0.5059, 0.9843
RGB percentages7.1%, 50.6%, 98.4%
HSLhsl(211.4, 96.7%, 52.7%)
HSV / HSBhsv(211.4, 92.8%, 98.4%)
CMYK92.8%, 48.6%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,212,923
CSS custom property--colour: #1281FB;

Brightness & contrast

Relative luminance0.22794WCAG 2.x, 0 is black and 1 is white
Perceived brightness130.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.56:1
Contrast with white3.78:1WCAG normal text: Fail
Contrast with black5.56:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#ED7E04

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#348EFFno red cones; affects about 1% of men; ΔE 7.9 from the original
Deuteranopia#007AF9no green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#009FB2no blue cones; rare, and affects men and women equally; ΔE 66.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.78:1WCAG large text: AA
Contrast with black, large text5.56:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 9.9Royal blue · ΔE 12Cornflower blue · ΔE 21.9Slate blue · ΔE 23.8Medium slateblue · ΔE 24.3Medium purple · ΔE 27
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 9.86, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FB8C12
Analogous#12F5FB, #1812FB
Triadic#FB1281, #81FB12
Split complementary#FB1812, #F5FB12
Tetradic#FB12F5, #FB8C12, #12FB18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DBECFE
Lighter +30%#A8D1FE
Lighter +20%#76B6FD
Lighter +10%#449CFC
Darker −10%#0468D6
Darker −20%#0350A4
Darker −30%#023772
Darker −40%#011F40
More saturated +25%#0E81FF
Less saturated −25%#3082DD

Channel breakdown

R18
G129
B251
Red18 (7.1%)
Green129 (50.6%)
Blue251 (98.4%)
Hue211.42°
Saturation (HSL)96.68%
Lightness52.75%
Dominant channelBlue
Hex per channelR 12 · G 81 · B FB

Keep nerding

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

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “1281fb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.