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Colour

#2B01FF

  • #2B01FF
  • Blue
  • Dark
  • Nearest: Blue

#2B01FF is a blue with RGB values 43, 1, 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

#2B01FF#2B01FF
HEX#2B01FF
RGBrgb(43, 1, 255)
RGB (0–1)0.1686, 0.0039, 1
RGB percentages16.9%, 0.4%, 100%
HSLhsl(249.9, 100%, 50.2%)
HSV / HSBhsv(249.9, 99.6%, 100%)
CMYK83.1%, 99.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,818,559
CSS custom property--colour: #2B01FF;

Brightness & contrast

Relative luminance0.07755WCAG 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 8.23:1
Contrast with white8.23:1WCAG normal text: AAA
Contrast with black2.55:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#D4FE00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005AFFno red cones; affects about 1% of men; ΔE 42.9 from the original
Deuteranopia#0042FBno green cones; the most common form, about 1% of men; ΔE 27.3 from the original
Tritanopia#006B96no blue cones; rare, and affects men and women equally; ΔE 116.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.23:1WCAG large text: AAA
Contrast with black, large text2.55:1WCAG large text: Fail

Named colours

Blue · ΔE 2.3Medium blue · ΔE 20.7Blue violet · ΔE 33.7Dark violet · ΔE 36.2Dark orchid · ΔE 49Dark blue · ΔE 50.7
Nearest named CSS colourBlue (#0000FF)ΔE 2.31, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D5FF01
Analogous#0156FF, #AA01FF
Triadic#FF2B01, #01FF2B
Split complementary#FFAA01, #56FF01
Tetradic#FF0156, #D5FF01, #01FFAA

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D5CDFF
Lighter +30%#AB9AFF
Lighter +20%#8067FF
Lighter +10%#5634FF
Darker −10%#2200CD
Darker −20%#19009A
Darker −30%#110067
Darker −40%#090034
More saturated +25%#2B01FF
Less saturated −25%#4021DF

Channel breakdown

R43
G1
B255
Red43 (16.9%)
Green1 (0.4%)
Blue255 (100%)
Hue249.92°
Saturation (HSL)100%
Lightness50.2%
Dominant channelBlue
Hex per channelR 2B · G 01 · B FF

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Every value on this page was computed from “2b01ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.