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Recognised as Colour

#0051EB

  • #0051EB
  • Blue
  • Dark
  • Nearest: Medium slateblue

#0051EB is a blue with RGB values 0, 81, 235 and HSL 219°, 100%, 46%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#0051EB#0051EB
HEX#0051EB
RGBrgb(0, 81, 235)
RGB (0–1)0, 0.3176, 0.9216
RGB percentages0%, 31.8%, 92.2%
HSLhsl(219.3, 100%, 46.1%)
HSV / HSBhsv(219.3, 100%, 92.2%)
CMYK100%, 65.5%, 0%, 7.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer20,971
CSS custom property--colour: #0051EB;

Brightness & contrast

Relative luminance0.11883WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.22:1
Contrast with white6.22:1WCAG normal text: AA
Contrast with black3.38:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#FFAE14

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006BF0no red cones; affects about 1% of men; ΔE 18.4 from the original
Deuteranopia#0057E8no green cones; the most common form, about 1% of men; ΔE 6.3 from the original
Tritanopia#007B97no blue cones; rare, and affects men and women equally; ΔE 83.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.22:1WCAG large text: AAA
Contrast with black, large text3.38:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 20.1Royal blue · ΔE 23.4Slate blue · ΔE 25.2Blue violet · ΔE 29.8Dark blue · ΔE 31Medium blue · ΔE 32.1
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 20.07, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EB9A00
Analogous#00C6EB, #2500EB
Triadic#EB0051, #51EB00
Split complementary#EB2500, #C6EB00
Tetradic#EB00C6, #EB9A00, #00EB25

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B8D0FF
Lighter +30%#85AFFF
Lighter +20%#528EFF
Lighter +10%#1F6CFF
Darker −10%#003FB8
Darker −20%#002E85
Darker −30%#001C52
Darker −40%#000B1F
More saturated +25%#0051EB
Less saturated −25%#1D5ACE

Channel breakdown

R0
G81
B235
Red0 (0%)
Green81 (31.8%)
Blue235 (92.2%)
Hue219.32°
Saturation (HSL)100%
Lightness46.08%
Dominant channelBlue
Hex per channelR 00 · G 51 · B EB

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Every value on this page was computed from “0051eb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.