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Colour

#0381F1

  • #0381F1
  • Blue
  • Dark
  • Nearest: Dodgerblue

#0381F1 is a blue with RGB values 3, 129, 241 and HSL 208°, 98%, 48%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#0381F1#0381F1
HEX#0381F1
RGBrgb(3, 129, 241)
RGB (0–1)0.0118, 0.5059, 0.9451
RGB percentages1.2%, 50.6%, 94.5%
HSLhsl(208.2, 97.5%, 47.8%)
HSV / HSBhsv(208.2, 98.8%, 94.5%)
CMYK98.8%, 46.5%, 0%, 5.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer229,873
CSS custom property--colour: #0381F1;

Brightness & contrast

Relative luminance0.22071WCAG 2.x, 0 is black and 1 is white
Perceived brightness128 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.41:1
Contrast with white3.88:1WCAG normal text: Fail
Contrast with black5.41:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#FC7E0E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#408BF5no red cones; affects about 1% of men; ΔE 6 from the original
Deuteranopia#0079EFno green cones; the most common form, about 1% of men; ΔE 5.5 from the original
Tritanopia#009CADno blue cones; rare, and affects men and women equally; ΔE 61.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.88:1WCAG large text: AA
Contrast with black, large text5.41:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 6.1Royal blue · ΔE 14.9Cornflower blue · ΔE 17.2Slate blue · ΔE 25.6Medium purple · ΔE 27.8Medium slateblue · ΔE 28.3
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 6.06, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F17303
Analogous#03F1EA, #030AF1
Triadic#F10381, #81F103
Split complementary#F1030A, #F1EA03
Tetradic#EA03F1, #F17303, #0AF103

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2E2FE
Lighter +30%#8FCAFE
Lighter +20%#5DB2FD
Lighter +10%#2B9AFC
Darker −10%#0266BF
Darker −20%#024B8C
Darker −30%#01305A
Darker −40%#001528
More saturated +25%#0081F4
Less saturated −25%#217FD3

Channel breakdown

R3
G129
B241
Red3 (1.2%)
Green129 (50.6%)
Blue241 (94.5%)
Hue208.24°
Saturation (HSL)97.54%
Lightness47.84%
Dominant channelBlue
Hex per channelR 03 · G 81 · B F1

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Every value on this page was computed from “0381f1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.