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Recognised as Colour

#006643

  • #006643
  • Cyan
  • Dark
  • Nearest: Sea green

#006643 is a cyan with RGB values 0, 102, 67 and HSL 159°, 100%, 20%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Sea green.

Colour values

#006643#006643
HEX#006643
RGBrgb(0, 102, 67)
RGB (0–1)0, 0.4, 0.2627
RGB percentages0%, 40%, 26.3%
HSLhsl(159.4, 100%, 20%)
HSV / HSBhsv(159.4, 100%, 40%)
CMYK100%, 0%, 34.3%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer26,179
CSS custom property--colour: #006643;

Brightness & contrast

Relative luminance0.09908WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.04:1
Contrast with white7.04:1WCAG normal text: AAA
Contrast with black2.98:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#FF99BC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#645D41no red cones; affects about 1% of men; ΔE 33.3 from the original
Deuteranopia#5A5645no green cones; the most common form, about 1% of men; ΔE 33.4 from the original
Tritanopia#00665Dno blue cones; rare, and affects men and women equally; ΔE 16.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.04:1WCAG large text: AAA
Contrast with black, large text2.98:1WCAG large text: Fail

Named colours

Sea green · ΔE 16.4Dark olivegreen · ΔE 24.5Teal · ΔE 24.5Dark cyan · ΔE 26.5Dark slate grey · ΔE 29.2Dark green · ΔE 30.4
Nearest named CSS colourSea green (#2E8B57)ΔE 16.39, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#660023
Analogous#006610, #005666
Triadic#430066, #664300
Split complementary#660056, #661000
Tetradic#100066, #660023, #566600

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#33FFB9
Lighter +30%#00FFA7
Lighter +20%#00CC86
Lighter +10%#009964
Darker −10%#003321
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#006643
Less saturated −25%#0D593F

Channel breakdown

R0
G102
B67
Red0 (0%)
Green102 (40%)
Blue67 (26.3%)
Hue159.41°
Saturation (HSL)100%
Lightness20%
Dominant channelGreen
Hex per channelR 00 · G 66 · B 43

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Every value on this page was computed from “hex 006643” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.