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Recognised as Colour

#0081FB

  • #0081FB
  • Blue
  • Dark
  • Nearest: Dodgerblue

#0081FB is a blue with RGB values 0, 129, 251 and HSL 209°, 100%, 49%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#0081FB#0081FB
HEX#0081FB
RGBrgb(0, 129, 251)
RGB (0–1)0, 0.5059, 0.9843
RGB percentages0%, 50.6%, 98.4%
HSLhsl(209.2, 100%, 49.2%)
HSV / HSBhsv(209.2, 100%, 98.4%)
CMYK100%, 48.6%, 0%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer33,275
CSS custom property--colour: #0081FB;

Brightness & contrast

Relative luminance0.22666WCAG 2.x, 0 is black and 1 is white
Perceived brightness130.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.53:1
Contrast with white3.8:1WCAG normal text: Fail
Contrast with black5.53:1WCAG normal text: AA
Greyscale equivalent#6E6E6E
Inverted#FF7E04

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#338DFFno red cones; affects about 1% of men; ΔE 7.1 from the original
Deuteranopia#007AF9no green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#009FB2no blue cones; rare, and affects men and women equally; ΔE 66.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.8:1WCAG large text: AA
Contrast with black, large text5.53:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 9.7Royal blue · ΔE 12.3Cornflower blue · ΔE 21.9Slate blue · ΔE 24.2Medium slateblue · ΔE 24.8Medium purple · ΔE 27.5
Nearest named CSS colourDodgerblue (#1E90FF)ΔE 9.7, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FB7A00
Analogous#00FBF8, #0003FB
Triadic#FB0081, #81FB00
Split complementary#FB0003, #FBF800
Tetradic#F800FB, #FB7A00, #03FB00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C8E4FF
Lighter +30%#95CBFF
Lighter +20%#62B3FF
Lighter +10%#2F9AFF
Darker −10%#0067C8
Darker −20%#004D95
Darker −30%#003262
Darker −40%#00182F
More saturated +25%#0081FB
Less saturated −25%#1F80DC

Channel breakdown

R0
G129
B251
Red0 (0%)
Green129 (50.6%)
Blue251 (98.4%)
Hue209.16°
Saturation (HSL)100%
Lightness49.22%
Dominant channelBlue
Hex per channelR 00 · G 81 · B FB

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Every value on this page was computed from “0081fb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.