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Recognised as Colour

#00458D

  • #00458D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#00458D is a blue with RGB values 0, 69, 141 and HSL 211°, 100%, 28%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00458D#00458D
HEX#00458D
RGBrgb(0, 69, 141)
RGB (0–1)0, 0.2706, 0.5529
RGB percentages0%, 27.1%, 55.3%
HSLhsl(210.6, 100%, 27.6%)
HSV / HSBhsv(210.6, 100%, 55.3%)
CMYK100%, 51.1%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer17,805
CSS custom property--colour: #00458D;

Brightness & contrast

Relative luminance0.06179WCAG 2.x, 0 is black and 1 is white
Perceived brightness71.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.39:1
Contrast with white9.39:1WCAG normal text: AAA
Contrast with black2.24:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#FFBA72

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#164C90no red cones; affects about 1% of men; ΔE 4.3 from the original
Deuteranopia#00418Cno green cones; the most common form, about 1% of men; ΔE 3.1 from the original
Tritanopia#005762no blue cones; rare, and affects men and women equally; ΔE 43.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.39:1WCAG large text: AAA
Contrast with black, large text2.24:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.1Midnight blue · ΔE 25.2Steel blue · ΔE 30.2Royal blue · ΔE 30.9Rebecca purple · ΔE 31.8Slate blue · ΔE 31.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.12, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8D4800
Analogous#008B8D, #02008D
Triadic#8D0045, #458D00
Split complementary#8D0200, #8B8D00
Tetradic#8D008B, #8D4800, #008D02

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5AABFF
Lighter +30%#2791FF
Lighter +20%#0077F3
Lighter +10%#005EC0
Darker −10%#002C5A
Darker −20%#001327
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00458D
Less saturated −25%#12457B

Channel breakdown

R0
G69
B141
Red0 (0%)
Green69 (27.1%)
Blue141 (55.3%)
Hue210.64°
Saturation (HSL)100%
Lightness27.65%
Dominant channelBlue
Hex per channelR 00 · G 45 · B 8D

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Every value on this page was computed from “00458d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.