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Colour

#000821

  • #000821
  • Blue
  • Dark
  • Nearest: Black

#000821 is a blue with RGB values 0, 8, 33 and HSL 225°, 100%, 6%. It is a dark colour, so white text on it reaches 19.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#000821#000821
HEX#000821
RGBrgb(0, 8, 33)
RGB (0–1)0, 0.0314, 0.1294
RGB percentages0%, 3.1%, 12.9%
HSLhsl(225.5, 100%, 6.5%)
HSV / HSBhsv(225.5, 100%, 12.9%)
CMYK100%, 75.8%, 0%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,081
CSS custom property--colour: #000821;

Brightness & contrast

Relative luminance0.00283WCAG 2.x, 0 is black and 1 is white
Perceived brightness12.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.87:1
Contrast with white19.87:1WCAG normal text: AAA
Contrast with black1.06:1WCAG normal text: Fail
Greyscale equivalent#080808
Inverted#FFF7DE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#000B22no red cones; affects about 1% of men; ΔE 1.1 from the original
Deuteranopia#000821no green cones; the most common form, about 1% of men; ΔE 0 from the original
Tritanopia#000E13no blue cones; rare, and affects men and women equally; ΔE 13.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.87:1WCAG large text: AAA
Contrast with black, large text1.06:1WCAG large text: Fail

Named colours

Black · ΔE 16.3Dark slate grey · ΔE 34.7Dark slateblue · ΔE 44.6Dim grey · ΔE 44.8Midnight blue · ΔE 45.9Slate grey · ΔE 50.9
Nearest named CSS colourBlack (#000000)ΔE 16.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#211900
Analogous#001821, #090021
Triadic#210008, #082100
Split complementary#210900, #182100
Tetradic#210018, #211900, #002109

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0039ED
Lighter +30%#002DBA
Lighter +20%#002187
Lighter +10%#001454
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000821
Less saturated −25%#040A1D

Channel breakdown

R0
G8
B33
Red0 (0%)
Green8 (3.1%)
Blue33 (12.9%)
Hue225.45°
Saturation (HSL)100%
Lightness6.47%
Dominant channelBlue
Hex per channelR 00 · G 08 · B 21

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Every value on this page was computed from “hex 000821” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.