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Colour

#21784F

  • #21784F
  • Cyan
  • Dark
  • Nearest: Sea green

#21784F is a cyan with RGB values 33, 120, 79 and HSL 152°, 57%, 30%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Sea green.

Colour values

#21784F#21784F
HEX#21784F
RGBrgb(33, 120, 79)
RGB (0–1)0.1294, 0.4706, 0.3098
RGB percentages12.9%, 47.1%, 31%
HSLhsl(151.7, 56.9%, 30%)
HSV / HSBhsv(151.7, 72.5%, 47.1%)
CMYK72.5%, 0%, 34.2%, 52.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,193,487
CSS custom property--colour: #21784F;

Brightness & contrast

Relative luminance0.14321WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.43:1
Contrast with white5.43:1WCAG normal text: AA
Contrast with black3.86:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#DE87B0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#776E4Cno red cones; affects about 1% of men; ΔE 34.1 from the original
Deuteranopia#6C6752no green cones; the most common form, about 1% of men; ΔE 34.1 from the original
Tritanopia#00776Dno blue cones; rare, and affects men and women equally; ΔE 18.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.43:1WCAG large text: AAA
Contrast with black, large text3.86:1WCAG large text: AA

Named colours

Sea green · ΔE 9.2Dark olivegreen · ΔE 23Teal · ΔE 25Medium seagreen · ΔE 25.7Dark cyan · ΔE 26Dark green · ΔE 28.9
Nearest named CSS colourSea green (#2E8B57)ΔE 9.21, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#78214A
Analogous#217823, #217678
Triadic#4F2178, #784F21
Split complementary#782176, #782321
Tetradic#232178, #78214A, #767821

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#87DEB5
Lighter +30%#5FD39C
Lighter +20%#37C884
Lighter +10%#2CA069
Darker −10%#165035
Darker −20%#0B281A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0E8B50
Less saturated −25%#34654E

Channel breakdown

R33
G120
B79
Red33 (12.9%)
Green120 (47.1%)
Blue79 (31%)
Hue151.72°
Saturation (HSL)56.86%
Lightness30%
Dominant channelGreen
Hex per channelR 21 · G 78 · B 4F

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Every value on this page was computed from “21784f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.