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Colour

#2B00FF

  • #2B00FF
  • Blue
  • Dark
  • Nearest: Blue

#2B00FF is a blue with RGB values 43, 0, 255 and HSL 250°, 100%, 50%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#2B00FF#2B00FF
HEX#2B00FF
RGBrgb(43, 0, 255)
RGB (0–1)0.1686, 0, 1
RGB percentages16.9%, 0%, 100%
HSLhsl(250.1, 100%, 50%)
HSV / HSBhsv(250.1, 100%, 100%)
CMYK83.1%, 100%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,818,303
CSS custom property--colour: #2B00FF;

Brightness & contrast

Relative luminance0.07734WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.25:1
Contrast with white8.25:1WCAG normal text: AAA
Contrast with black2.55:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#D4FF00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005AFFno red cones; affects about 1% of men; ΔE 43.1 from the original
Deuteranopia#0042FBno green cones; the most common form, about 1% of men; ΔE 27.5 from the original
Tritanopia#006B96no blue cones; rare, and affects men and women equally; ΔE 117 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.25:1WCAG large text: AAA
Contrast with black, large text2.55:1WCAG large text: Fail

Named colours

Blue · ΔE 2.2Medium blue · ΔE 20.8Blue violet · ΔE 33.8Dark violet · ΔE 36.3Dark orchid · ΔE 49.1Dark blue · ΔE 50.9
Nearest named CSS colourBlue (#0000FF)ΔE 2.24, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D4FF00
Analogous#0054FF, #AB00FF
Triadic#FF2B00, #00FF2B
Split complementary#FFAB00, #54FF00
Tetradic#FF0054, #D4FF00, #00FFAB

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D5CCFF
Lighter +30%#AA99FF
Lighter +20%#8066FF
Lighter +10%#5533FF
Darker −10%#2200CC
Darker −20%#1A0099
Darker −30%#110066
Darker −40%#090033
More saturated +25%#2B00FF
Less saturated −25%#4020DF

Channel breakdown

R43
G0
B255
Red43 (16.9%)
Green0 (0%)
Blue255 (100%)
Hue250.12°
Saturation (HSL)100%
Lightness50%
Dominant channelBlue
Hex per channelR 2B · G 00 · B FF

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Every value on this page was computed from “2b00ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.