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Recognised as Colour

#011021

  • #011021
  • Blue
  • Dark
  • Nearest: Black

#011021 is a blue with RGB values 1, 16, 33 and HSL 212°, 94%, 7%. It is a dark colour, so white text on it reaches 19.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#011021#011021
HEX#011021
RGBrgb(1, 16, 33)
RGB (0–1)0.0039, 0.0627, 0.1294
RGB percentages0.4%, 6.3%, 12.9%
HSLhsl(211.9, 94.1%, 6.7%)
HSV / HSBhsv(211.9, 97%, 12.9%)
CMYK97%, 51.5%, 0%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer69,665
CSS custom property--colour: #011021;

Brightness & contrast

Relative luminance0.00487WCAG 2.x, 0 is black and 1 is white
Perceived brightness16.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.14:1
Contrast with white19.14:1WCAG normal text: AAA
Contrast with black1.1:1WCAG normal text: Fail
Greyscale equivalent#0E0E0E
Inverted#FEEFDE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#081122no red cones; affects about 1% of men; ΔE 1.8 from the original
Deuteranopia#040E21no green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#001416no blue cones; rare, and affects men and women equally; ΔE 11.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.14:1WCAG large text: AAA
Contrast with black, large text1.1:1WCAG large text: Fail

Named colours

Black · ΔE 13.6Dark slate grey · ΔE 30.8Dim grey · ΔE 42Dark slateblue · ΔE 47Slate grey · ΔE 48.6Midnight blue · ΔE 49.6
Nearest named CSS colourBlack (#000000)ΔE 13.6, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#211201
Analogous#012021, #020121
Triadic#210110, #102101
Split complementary#210201, #202101
Tetradic#210120, #211201, #012102

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0770E7
Lighter +30%#0558B6
Lighter +20%#044084
Lighter +10%#022853
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001022
Less saturated −25%#05101D

Channel breakdown

R1
G16
B33
Red1 (0.4%)
Green16 (6.3%)
Blue33 (12.9%)
Hue211.88°
Saturation (HSL)94.12%
Lightness6.67%
Dominant channelBlue
Hex per channelR 01 · G 10 · B 21

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Every value on this page was computed from “hex 011021” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.