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Recognised as Colour

#0458D4

  • #0458D4
  • Blue
  • Dark
  • Nearest: Royal blue

#0458D4 is a blue with RGB values 4, 88, 212 and HSL 216°, 96%, 42%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0458D4#0458D4
HEX#0458D4
RGBrgb(4, 88, 212)
RGB (0–1)0.0157, 0.3451, 0.8314
RGB percentages1.6%, 34.5%, 83.1%
HSLhsl(215.8, 96.3%, 42.4%)
HSV / HSBhsv(215.8, 98.1%, 83.1%)
CMYK98.1%, 58.5%, 0%, 16.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer284,884
CSS custom property--colour: #0458D4;

Brightness & contrast

Relative luminance0.11759WCAG 2.x, 0 is black and 1 is white
Perceived brightness98.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.27:1
Contrast with white6.27:1WCAG normal text: AA
Contrast with black3.35:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#FBA72B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0069D8no red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#0058D2no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#00788Dno blue cones; rare, and affects men and women equally; ΔE 69.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.27:1WCAG large text: AAA
Contrast with black, large text3.35:1WCAG large text: AA

Named colours

Royal blue · ΔE 8.2Slate blue · ΔE 14.9Medium slateblue · ΔE 17.9Medium purple · ΔE 25.5Dodgerblue · ΔE 26.4Rebecca purple · ΔE 28
Nearest named CSS colourRoyal blue (#4169E1)ΔE 8.23, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D48004
Analogous#04C0D4, #1804D4
Triadic#D40458, #58D404
Split complementary#D41804, #C0D404
Tetradic#D404C0, #D48004, #04D418

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A7CAFD
Lighter +30%#75ABFC
Lighter +20%#438DFB
Lighter +10%#116FFA
Darker −10%#0343A2
Darker −20%#022E70
Darker −30%#011A3E
Darker −40%#00050C
More saturated +25%#0057D8
Less saturated −25%#1F5DB9

Channel breakdown

R4
G88
B212
Red4 (1.6%)
Green88 (34.5%)
Blue212 (83.1%)
Hue215.77°
Saturation (HSL)96.3%
Lightness42.35%
Dominant channelBlue
Hex per channelR 04 · G 58 · B D4

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Every value on this page was computed from “0458d4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.