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Recognised as Colour

#0381EE

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

#0381EE is a blue with RGB values 3, 129, 238 and HSL 208°, 98%, 47%. 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

#0381EE#0381EE
HEX#0381EE
RGBrgb(3, 129, 238)
RGB (0–1)0.0118, 0.5059, 0.9333
RGB percentages1.2%, 50.6%, 93.3%
HSLhsl(207.8, 97.5%, 47.3%)
HSV / HSBhsv(207.8, 98.7%, 93.3%)
CMYK98.7%, 45.8%, 0%, 6.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer229,870
CSS custom property--colour: #0381EE;

Brightness & contrast

Relative luminance0.21893WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.38:1
Contrast with white3.9:1WCAG normal text: Fail
Contrast with black5.38:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#FC7E11

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#438BF2no red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#0078ECno green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#009CACno blue cones; rare, and affects men and women equally; ΔE 60.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.9:1WCAG large text: AA
Contrast with black, large text5.38:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 5.8Cornflower blue · ΔE 15.9Royal blue · ΔE 16Slate blue · ΔE 26.3Medium purple · ΔE 28.2Medium slateblue · ΔE 29.6
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 5.76, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EE7003
Analogous#03EEE5, #030CEE
Triadic#EE0381, #81EE03
Split complementary#EE030B, #EEE503
Tetradic#E603EE, #EE7003, #0BEE03

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BFE1FE
Lighter +30%#8CC9FE
Lighter +20%#5AB1FD
Lighter +10%#289AFC
Darker −10%#0266BC
Darker −20%#024A89
Darker −30%#012F57
Darker −40%#001425
More saturated +25%#0081F1
Less saturated −25%#217FD0

Channel breakdown

R3
G129
B238
Red3 (1.2%)
Green129 (50.6%)
Blue238 (93.3%)
Hue207.83°
Saturation (HSL)97.51%
Lightness47.25%
Dominant channelBlue
Hex per channelR 03 · G 81 · B EE

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