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Recognised as Colour

#004221

  • #004221
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004221 is a cyan with RGB values 0, 66, 33 and HSL 150°, 100%, 13%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004221#004221
HEX#004221
RGBrgb(0, 66, 33)
RGB (0–1)0, 0.2588, 0.1294
RGB percentages0%, 25.9%, 12.9%
HSLhsl(150, 100%, 12.9%)
HSV / HSBhsv(150, 100%, 25.9%)
CMYK100%, 0%, 50%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,929
CSS custom property--colour: #004221;

Brightness & contrast

Relative luminance0.04006WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.66:1
Contrast with white11.66:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#FFBDDE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#423B1Fno red cones; affects about 1% of men; ΔE 26.8 from the original
Deuteranopia#3B3623no green cones; the most common form, about 1% of men; ΔE 26.9 from the original
Tritanopia#00413Ano blue cones; rare, and affects men and women equally; ΔE 17.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.66:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 25.9Dark olivegreen · ΔE 26Sea green · ΔE 30.6Dark green · ΔE 33.5Teal · ΔE 33.9Dark cyan · ΔE 37.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 25.89, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#420021
Analogous#004200, #004242
Triadic#210042, #422100
Split complementary#420042, #420000
Tetradic#000042, #420021, #424200

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0FFF87
Lighter +30%#00DB6E
Lighter +20%#00A854
Lighter +10%#00753B
Darker −10%#000F08
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004221
Less saturated −25%#083A21

Channel breakdown

R0
G66
B33
Red0 (0%)
Green66 (25.9%)
Blue33 (12.9%)
Hue150°
Saturation (HSL)100%
Lightness12.94%
Dominant channelGreen
Hex per channelR 00 · G 42 · B 21

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Every value on this page was computed from “hex 004221” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.