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Recognised as Colour

#0457EA

  • #0457EA
  • Blue
  • Dark
  • Nearest: Medium slateblue

#0457EA is a blue with RGB values 4, 87, 234 and HSL 218°, 97%, 47%. 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

#0457EA#0457EA
HEX#0457EA
RGBrgb(4, 87, 234)
RGB (0–1)0.0157, 0.3412, 0.9176
RGB percentages1.6%, 34.1%, 91.8%
HSLhsl(218.3, 96.6%, 46.7%)
HSV / HSBhsv(218.3, 98.3%, 91.8%)
CMYK98.3%, 62.8%, 0%, 8.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer284,650
CSS custom property--colour: #0457EA;

Brightness & contrast

Relative luminance0.12783WCAG 2.x, 0 is black and 1 is white
Perceived brightness103.4 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#505050
Inverted#FBA815

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006EEFno red cones; affects about 1% of men; ΔE 16.2 from the original
Deuteranopia#005BE7no green cones; the most common form, about 1% of men; ΔE 4.8 from the original
Tritanopia#007E98no blue cones; rare, and affects men and women equally; ΔE 80.4 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 17.4Royal blue · ΔE 18.4Slate blue · ΔE 21.7Medium purple · ΔE 31.7Dark blue · ΔE 32.6Blue violet · ΔE 33.3
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 17.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EA9704
Analogous#04CAEA, #2404EA
Triadic#EA0457, #57EA04
Split complementary#EA2404, #CAEA04
Tetradic#EA04CA, #EA9704, #04EA24

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCD4FE
Lighter +30%#8AB4FD
Lighter +20%#5893FC
Lighter +10%#2673FB
Darker −10%#0344B8
Darker −20%#023286
Darker −30%#011F54
Darker −40%#010C21
More saturated +25%#0056EE
Less saturated −25%#225FCC

Channel breakdown

R4
G87
B234
Red4 (1.6%)
Green87 (34.1%)
Blue234 (91.8%)
Hue218.35°
Saturation (HSL)96.64%
Lightness46.67%
Dominant channelBlue
Hex per channelR 04 · G 57 · B EA

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Every value on this page was computed from “0457ea” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.