Recognised as Colour
#21665E
- #21665E
- Cyan
- Dark
- Nearest: Teal
#21665E is a cyan with RGB values 33, 102, 94 and HSL 173°, 51%, 26%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Teal.
Colour values
#21665E#21665E
HEX#21665E
RGBrgb(33, 102, 94)
RGB (0–1)0.1294, 0.4, 0.3686
RGB percentages12.9%, 40%, 36.9%
HSLhsl(173, 51.1%, 26.5%)
HSV / HSBhsv(173, 67.6%, 40%)
CMYK67.6%, 0%, 7.8%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,188,894
CSS custom property--colour: #21665E;
Brightness & contrast
Relative luminance0.10634WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.72:1
Contrast with white6.72:1WCAG normal text: AA
Contrast with black3.13:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#DE99A1
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.72:1WCAG large text: AAA
Contrast with black, large text3.13:1WCAG large text: AA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#662129
Analogous#21663B, #214C66
Triadic#5E2166, #665E21
Split complementary#66214C, #663B21
Tetradic#3B2166, #662129, #4C6621
Tints, shades & saturation
Channel breakdown
R33
G102
B94
Red33 (12.9%)
Green102 (40%)
Blue94 (36.9%)
Hue173.04°
Saturation (HSL)51.11%
Lightness26.47%
Dominant channelGreen
Hex per channelR 21 · G 66 · B 5E
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