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Recognised as Colour

#139DF1

  • #139DF1
  • Blue
  • Dark
  • Nearest: Cornflower blue

#139DF1 is a blue with RGB values 19, 157, 241 and HSL 203°, 89%, 51%. It is a dark colour, so black text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#139DF1#139DF1
HEX#139DF1
RGBrgb(19, 157, 241)
RGB (0–1)0.0745, 0.6157, 0.9451
RGB percentages7.5%, 61.6%, 94.5%
HSLhsl(202.7, 88.8%, 51%)
HSV / HSBhsv(202.7, 92.1%, 94.5%)
CMYK92.1%, 34.9%, 0%, 5.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,285,617
CSS custom property--colour: #139DF1;

Brightness & contrast

Relative luminance0.30603WCAG 2.x, 0 is black and 1 is white
Perceived brightness145.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.12:1
Contrast with white2.95:1WCAG normal text: Fail
Contrast with black7.12:1WCAG normal text: AAA
Greyscale equivalent#868686
Inverted#EC620E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#74A0F5no red cones; affects about 1% of men; ΔE 13.5 from the original
Deuteranopia#568EEFno green cones; the most common form, about 1% of men; ΔE 15.6 from the original
Tritanopia#00B2BCno blue cones; rare, and affects men and women equally; ΔE 46.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.95:1WCAG large text: Fail
Contrast with black, large text7.12:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.9Dodgerblue · ΔE 18.3Deep skyblue · ΔE 19.6Steel blue · ΔE 21.4Light skyblue · ΔE 29.7Royal blue · ΔE 35.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.95, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F16713
Analogous#13F1D6, #132EF1
Triadic#F1139D, #9DF113
Split complementary#F1132E, #F1D613
Tetradic#D613F1, #F16713, #2EF113

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D4EDFC
Lighter +30%#A3D9FA
Lighter +20%#73C5F7
Lighter +10%#43B1F4
Darker −10%#0C7FC5
Darker −20%#096095
Darker −30%#064165
Darker −40%#032235
More saturated +25%#05A0FF
Less saturated −25%#3295D2

Channel breakdown

R19
G157
B241
Red19 (7.5%)
Green157 (61.6%)
Blue241 (94.5%)
Hue202.7°
Saturation (HSL)88.8%
Lightness50.98%
Dominant channelBlue
Hex per channelR 13 · G 9D · B F1

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Every value on this page was computed from “139df1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.