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Recognised as Colour

#0451EB

  • #0451EB
  • Blue
  • Dark
  • Nearest: Medium slateblue

#0451EB is a blue with RGB values 4, 81, 235 and HSL 220°, 97%, 47%. 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

#0451EB#0451EB
HEX#0451EB
RGBrgb(4, 81, 235)
RGB (0–1)0.0157, 0.3176, 0.9216
RGB percentages1.6%, 31.8%, 92.2%
HSLhsl(220, 96.7%, 46.9%)
HSV / HSBhsv(220, 98.3%, 92.2%)
CMYK98.3%, 65.5%, 0%, 7.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer283,115
CSS custom property--colour: #0451EB;

Brightness & contrast

Relative luminance0.11909WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.21:1
Contrast with white6.21:1WCAG normal text: AA
Contrast with black3.38:1WCAG normal text: Fail
Greyscale equivalent#4C4C4C
Inverted#FBAE14

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006BF0no red cones; affects about 1% of men; ΔE 18.5 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 text6.21:1WCAG large text: AAA
Contrast with black, large text3.38:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 20Royal blue · ΔE 23.4Slate blue · ΔE 25.1Blue violet · ΔE 29.7Dark blue · ΔE 31Medium blue · ΔE 32.1
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 19.99, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EB9E04
Analogous#04C5EB, #2B04EB
Triadic#EB0451, #51EB04
Split complementary#EB2B04, #C4EB04
Tetradic#EB04C4, #EB9E04, #04EB2A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BDD3FE
Lighter +30%#8BB1FD
Lighter +20%#598FFC
Lighter +10%#276EFB
Darker −10%#0340B9
Darker −20%#022E87
Darker −30%#011D55
Darker −40%#010C22
More saturated +25%#0050EF
Less saturated −25%#225BCD

Channel breakdown

R4
G81
B235
Red4 (1.6%)
Green81 (31.8%)
Blue235 (92.2%)
Hue220°
Saturation (HSL)96.65%
Lightness46.86%
Dominant channelBlue
Hex per channelR 04 · G 51 · B EB

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Every value on this page was computed from “0451eb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.