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Colour

#0255FF

  • #0255FF
  • Blue
  • Dark
  • Nearest: Medium slateblue

#0255FF is a blue with RGB values 2, 85, 255 and HSL 220°, 100%, 50%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#0255FF#0255FF
HEX#0255FF
RGBrgb(2, 85, 255)
RGB (0–1)0.0078, 0.3333, 1
RGB percentages0.8%, 33.3%, 100%
HSLhsl(220.3, 100%, 50.4%)
HSV / HSBhsv(220.3, 99.2%, 100%)
CMYK99.2%, 66.7%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer153,087
CSS custom property--colour: #0255FF;

Brightness & contrast

Relative luminance0.1373WCAG 2.x, 0 is black and 1 is white
Perceived brightness108 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.61:1
Contrast with white5.61:1WCAG normal text: AA
Contrast with black3.75:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#FDAA00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0073FFno red cones; affects about 1% of men; ΔE 23.6 from the original
Deuteranopia#005DFCno green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#0084A3no blue cones; rare, and affects men and women equally; ΔE 91 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.61:1WCAG large text: AAA
Contrast with black, large text3.75:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 25.2Blue violet · ΔE 27.8Medium blue · ΔE 28.6Royal blue · ΔE 30.8Slate blue · ΔE 32.5Dark orchid · ΔE 34.5
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 25.19, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFAC02
Analogous#02D3FF, #2E02FF
Triadic#FF0255, #55FF02
Split complementary#FF2E02, #D3FF02
Tetradic#FF02D3, #FFAC02, #02FF2E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CEDEFF
Lighter +30%#9BBCFF
Lighter +20%#689AFF
Lighter +10%#3577FF
Darker −10%#0044CE
Darker −20%#00339B
Darker −30%#002268
Darker −40%#001135
More saturated +25%#0255FF
Less saturated −25%#2260DF

Channel breakdown

R2
G85
B255
Red2 (0.8%)
Green85 (33.3%)
Blue255 (100%)
Hue220.32°
Saturation (HSL)100%
Lightness50.39%
Dominant channelBlue
Hex per channelR 02 · G 55 · B FF

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Every value on this page was computed from “0255ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.