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Recognised as Colour

#021F33

  • #021F33
  • Blue
  • Dark
  • Nearest: Black

#021F33 is a blue with RGB values 2, 31, 51 and HSL 204°, 92%, 10%. It is a dark colour, so white text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#021F33#021F33
HEX#021F33
RGBrgb(2, 31, 51)
RGB (0–1)0.0078, 0.1216, 0.2
RGB percentages0.8%, 12.2%, 20%
HSLhsl(204.5, 92.5%, 10.4%)
HSV / HSBhsv(204.5, 96.1%, 20%)
CMYK96.1%, 39.2%, 0%, 80%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer139,059
CSS custom property--colour: #021F33;

Brightness & contrast

Relative luminance0.01232WCAG 2.x, 0 is black and 1 is white
Perceived brightness29.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.85:1
Contrast with white16.85:1WCAG normal text: AAA
Contrast with black1.25:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#FDE0CC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#152034no red cones; affects about 1% of men; ΔE 4.7 from the original
Deuteranopia#0E1B33no green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#002426no 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 text16.85:1WCAG large text: AAA
Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Black · ΔE 19.6Dark slate grey · ΔE 25.9Dim grey · ΔE 37.4Slate grey · ΔE 42.4Dark slateblue · ΔE 43.1Steel blue · ΔE 44.7
Nearest named CSS colourBlack (#000000)ΔE 19.59, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#331602
Analogous#02332F, #020733
Triadic#33021F, #1F3302
Split complementary#330206, #332F02
Tetradic#2F0233, #331602, #073302

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0C96F5
Lighter +30%#0878C6
Lighter +20%#065B95
Lighter +10%#043D64
Darker −10%#000102
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001F35
Less saturated −25%#091E2C

Channel breakdown

R2
G31
B51
Red2 (0.8%)
Green31 (12.2%)
Blue51 (20%)
Hue204.49°
Saturation (HSL)92.45%
Lightness10.39%
Dominant channelBlue
Hex per channelR 02 · G 1F · B 33

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Every value on this page was computed from “021f33” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.