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Recognised as Colour

#045AC4

  • #045AC4
  • Blue
  • Dark
  • Nearest: Royal blue

#045AC4 is a blue with RGB values 4, 90, 196 and HSL 213°, 96%, 39%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#045AC4#045AC4
HEX#045AC4
RGBrgb(4, 90, 196)
RGB (0–1)0.0157, 0.3529, 0.7686
RGB percentages1.6%, 35.3%, 76.9%
HSLhsl(213.1, 96%, 39.2%)
HSV / HSBhsv(213.1, 98%, 76.9%)
CMYK98%, 54.1%, 0%, 23.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer285,380
CSS custom property--colour: #045AC4;

Brightness & contrast

Relative luminance0.11324WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.43:1
Contrast with white6.43:1WCAG normal text: AA
Contrast with black3.26:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#FBA53B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0067C8no red cones; affects about 1% of men; ΔE 9 from the original
Deuteranopia#0057C2no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#007586no blue cones; rare, and affects men and women equally; ΔE 60.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.43:1WCAG large text: AAA
Contrast with black, large text3.26:1WCAG large text: AA

Named colours

Royal blue · ΔE 10.7Slate blue · ΔE 17.2Dodgerblue · ΔE 21.9Dark slateblue · ΔE 22.1Medium slateblue · ΔE 24.6Medium purple · ΔE 25
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.68, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C46E04
Analogous#04BAC4, #0E04C4
Triadic#C4045A, #5AC404
Split complementary#C40E04, #BAC404
Tetradic#C404BA, #C46E04, #04C40E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#97C5FD
Lighter +30%#65A9FC
Lighter +20%#338DFB
Lighter +10%#0571F6
Darker −10%#034392
Darker −20%#022C60
Darker −30%#01152E
Darker −40%#000000
More saturated +25%#005AC8
Less saturated −25%#1D5DAB

Channel breakdown

R4
G90
B196
Red4 (1.6%)
Green90 (35.3%)
Blue196 (76.9%)
Hue213.13°
Saturation (HSL)96%
Lightness39.22%
Dominant channelBlue
Hex per channelR 04 · G 5A · B C4

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Every value on this page was computed from “045ac4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.