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Recognised as Colour

#1273F9

  • #1273F9
  • Blue
  • Dark
  • Nearest: Royal blue

#1273F9 is a blue with RGB values 18, 115, 249 and HSL 215°, 95%, 52%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1273F9#1273F9
HEX#1273F9
RGBrgb(18, 115, 249)
RGB (0–1)0.0706, 0.451, 0.9765
RGB percentages7.1%, 45.1%, 97.6%
HSLhsl(214.8, 95.1%, 52.4%)
HSV / HSBhsv(214.8, 92.8%, 97.6%)
CMYK92.8%, 53.8%, 0%, 2.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,209,337
CSS custom property--colour: #1273F9;

Brightness & contrast

Relative luminance0.1923WCAG 2.x, 0 is black and 1 is white
Perceived brightness122.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.85:1
Contrast with white4.33:1WCAG normal text: Fail
Contrast with black4.85:1WCAG normal text: AA
Greyscale equivalent#686868
Inverted#ED8C06

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0084FEno red cones; affects about 1% of men; ΔE 11.5 from the original
Deuteranopia#0070F6no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#0095ABno blue cones; rare, and affects men and women equally; ΔE 73 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.33:1WCAG large text: AA
Contrast with black, large text4.85:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.1Medium slateblue · ΔE 18Slate blue · ΔE 20.1Dodgerblue · ΔE 20.2Medium purple · ΔE 26.6Cornflower blue · ΔE 31.1
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.07, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F99812
Analogous#12E7F9, #2512F9
Triadic#F91273, #73F912
Split complementary#F92412, #E7F912
Tetradic#F912E6, #F99812, #12F924

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9E9FE
Lighter +30%#A7CBFD
Lighter +20%#75AEFC
Lighter +10%#4490FA
Darker −10%#055CD3
Darker −20%#0446A1
Darker −30%#03306F
Darker −40%#021B3D
More saturated +25%#0C72FF
Less saturated −25%#3078DB

Channel breakdown

R18
G115
B249
Red18 (7.1%)
Green115 (45.1%)
Blue249 (97.6%)
Hue214.81°
Saturation (HSL)95.06%
Lightness52.35%
Dominant channelBlue
Hex per channelR 12 · G 73 · B F9

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Every value on this page was computed from “1273f9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.