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Recognised as Colour

#0051FA

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

#0051FA is a blue with RGB values 0, 81, 250 and HSL 221°, 100%, 49%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#0051FA#0051FA
HEX#0051FA
RGBrgb(0, 81, 250)
RGB (0–1)0, 0.3176, 0.9804
RGB percentages0%, 31.8%, 98%
HSLhsl(220.6, 100%, 49%)
HSV / HSBhsv(220.6, 100%, 98%)
CMYK100%, 67.6%, 0%, 2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer20,986
CSS custom property--colour: #0051FA;

Brightness & contrast

Relative luminance0.12787WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.9:1
Contrast with white5.9:1WCAG normal text: AA
Contrast with black3.56:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#FFAE05

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006FFFno red cones; affects about 1% of men; ΔE 21.1 from the original
Deuteranopia#0059F7no green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#00819Fno blue cones; rare, and affects men and women equally; ΔE 91.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.9:1WCAG large text: AAA
Contrast with black, large text3.56:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 25.4Blue violet · ΔE 27Medium blue · ΔE 27.3Royal blue · ΔE 31Slate blue · ΔE 32.3Dark orchid · ΔE 33.8
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 25.37, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FAA900
Analogous#00CEFA, #2C00FA
Triadic#FA0051, #51FA00
Split complementary#FA2C00, #CEFA00
Tetradic#FA00CE, #FAA900, #00FA2C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C7D9FF
Lighter +30%#94B7FF
Lighter +20%#6194FF
Lighter +10%#2E72FF
Darker −10%#0040C7
Darker −20%#003094
Darker −30%#001F61
Darker −40%#000F2E
More saturated +25%#0051FA
Less saturated −25%#1F5CDB

Channel breakdown

R0
G81
B250
Red0 (0%)
Green81 (31.8%)
Blue250 (98%)
Hue220.56°
Saturation (HSL)100%
Lightness49.02%
Dominant channelBlue
Hex per channelR 00 · G 51 · B FA

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