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Recognised as Colour

#1388EF

  • #1388EF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#1388EF is a blue with RGB values 19, 136, 239 and HSL 208°, 87%, 51%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#1388EF#1388EF
HEX#1388EF
RGBrgb(19, 136, 239)
RGB (0–1)0.0745, 0.5333, 0.9373
RGB percentages7.5%, 53.3%, 93.7%
HSLhsl(208.1, 87.3%, 50.6%)
HSV / HSBhsv(208.1, 92.1%, 93.7%)
CMYK92.1%, 43.1%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,280,239
CSS custom property--colour: #1388EF;

Brightness & contrast

Relative luminance0.23979WCAG 2.x, 0 is black and 1 is white
Perceived brightness132.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.8:1
Contrast with white3.62:1WCAG normal text: Fail
Contrast with black5.8:1WCAG normal text: AA
Greyscale equivalent#777777
Inverted#EC7710

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5190F3no red cones; affects about 1% of men; ΔE 6.4 from the original
Deuteranopia#247EEDno green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#00A1B0no blue cones; rare, and affects men and women equally; ΔE 56.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.62:1WCAG large text: AA
Contrast with black, large text5.8:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 5.1Cornflower blue · ΔE 12.2Royal blue · ΔE 20.5Slate blue · ΔE 29.9Medium purple · ΔE 30.2Steel blue · ΔE 30.5
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 5.12, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EF7A13
Analogous#13EFE8, #131AEF
Triadic#EF1388, #88EF13
Split complementary#EF131A, #EFE813
Tetradic#E813EF, #EF7A13, #1AEF13

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D2E8FC
Lighter +30%#A2D0F9
Lighter +20%#73B8F5
Lighter +10%#43A0F2
Darker −10%#0D6DC2
Darker −20%#0A5292
Darker −30%#073762
Darker −40%#031C33
More saturated +25%#0389FF
Less saturated −25%#3286D0

Channel breakdown

R19
G136
B239
Red19 (7.5%)
Green136 (53.3%)
Blue239 (93.7%)
Hue208.09°
Saturation (HSL)87.3%
Lightness50.59%
Dominant channelBlue
Hex per channelR 13 · G 88 · B EF

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Every value on this page was computed from “1388ef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.