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Recognised as Colour

#138CFF

  • #138CFF
  • Blue
  • Dark
  • Nearest: Dodgerblue

#138CFF is a blue with RGB values 19, 140, 255 and HSL 209°, 100%, 54%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#138CFF#138CFF
HEX#138CFF
RGBrgb(19, 140, 255)
RGB (0–1)0.0745, 0.549, 1
RGB percentages7.5%, 54.9%, 100%
HSLhsl(209.2, 100%, 53.7%)
HSV / HSBhsv(209.2, 92.5%, 100%)
CMYK92.5%, 45.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,281,279
CSS custom property--colour: #138CFF;

Brightness & contrast

Relative luminance0.26115WCAG 2.x, 0 is black and 1 is white
Perceived brightness137.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.22:1
Contrast with white3.37:1WCAG normal text: Fail
Contrast with black6.22:1WCAG normal text: AA
Greyscale equivalent#7B7B7B
Inverted#EC7300

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4C96FFno red cones; affects about 1% of men; ΔE 7.7 from the original
Deuteranopia#0083FDno green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#00A8B9no blue cones; rare, and affects men and women equally; ΔE 62.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.37:1WCAG large text: AA
Contrast with black, large text6.22:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 3Cornflower blue · ΔE 16.7Royal blue · ΔE 17.7Slate blue · ΔE 28.4Medium purple · ΔE 29.4Medium slateblue · ΔE 29.8
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 3.03, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF8613
Analogous#13FFFC, #1316FF
Triadic#FF138C, #8CFF13
Split complementary#FF1316, #FFFC13
Tetradic#FC13FF, #FF8613, #16FF13

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DFEFFF
Lighter +30%#ACD7FF
Lighter +20%#79BEFF
Lighter +10%#46A5FF
Darker −10%#0072DF
Darker −20%#0058AC
Darker −30%#003E79
Darker −40%#002446
More saturated +25%#138CFF
Less saturated −25%#318BE2

Channel breakdown

R19
G140
B255
Red19 (7.5%)
Green140 (54.9%)
Blue255 (100%)
Hue209.24°
Saturation (HSL)100%
Lightness53.73%
Dominant channelBlue
Hex per channelR 13 · G 8C · B FF

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Every value on this page was computed from “138cff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.