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Recognised as Colour

#000521

  • #000521
  • Blue
  • Dark
  • Nearest: Black

#000521 is a blue with RGB values 0, 5, 33 and HSL 231°, 100%, 6%. It is a dark colour, so white text on it reaches 20.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#000521#000521
HEX#000521
RGBrgb(0, 5, 33)
RGB (0–1)0, 0.0196, 0.1294
RGB percentages0%, 2%, 12.9%
HSLhsl(230.9, 100%, 6.5%)
HSV / HSBhsv(230.9, 100%, 12.9%)
CMYK100%, 84.8%, 0%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,313
CSS custom property--colour: #000521;

Brightness & contrast

Relative luminance0.00218WCAG 2.x, 0 is black and 1 is white
Perceived brightness11.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.12:1
Contrast with white20.12:1WCAG normal text: AAA
Contrast with black1.04:1WCAG normal text: Fail
Greyscale equivalent#060606
Inverted#FFFADE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#000922no red cones; affects about 1% of men; ΔE 1.6 from the original
Deuteranopia#000620no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#000C11no blue cones; rare, and affects men and women equally; ΔE 14.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.12:1WCAG large text: AAA
Contrast with black, large text1.04:1WCAG large text: Fail

Named colours

Black · ΔE 17.4Dark slate grey · ΔE 36.1Dark slateblue · ΔE 43.9Midnight blue · ΔE 44.7Dim grey · ΔE 45.8Slate grey · ΔE 51.7
Nearest named CSS colourBlack (#000000)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#211C00
Analogous#001621, #0B0021
Triadic#210005, #052100
Split complementary#210B00, #162100
Tetradic#210016, #211C00, #00210B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0024ED
Lighter +30%#001CBA
Lighter +20%#001487
Lighter +10%#000D54
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000521
Less saturated −25%#04081D

Channel breakdown

R0
G5
B33
Red0 (0%)
Green5 (2%)
Blue33 (12.9%)
Hue230.91°
Saturation (HSL)100%
Lightness6.47%
Dominant channelBlue
Hex per channelR 00 · G 05 · B 21

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Every value on this page was computed from “hex 000521” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.