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Recognised as Colour

#21AFBA

  • #21AFBA
  • Cyan
  • Dark
  • Nearest: Light seagreen

#21AFBA is a cyan with RGB values 33, 175, 186 and HSL 184°, 70%, 43%. It is a dark colour, so black text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#21AFBA#21AFBA
HEX#21AFBA
RGBrgb(33, 175, 186)
RGB (0–1)0.1294, 0.6863, 0.7294
RGB percentages12.9%, 68.6%, 72.9%
HSLhsl(184.3, 69.9%, 42.9%)
HSV / HSBhsv(184.3, 82.3%, 72.9%)
CMYK82.3%, 5.9%, 0%, 27.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,207,674
CSS custom property--colour: #21AFBA;

Brightness & contrast

Relative luminance0.34528WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.91:1
Contrast with white2.66:1WCAG normal text: Fail
Contrast with black7.91:1WCAG normal text: AAA
Greyscale equivalent#929292
Inverted#DE5045

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A0A7BBno red cones; affects about 1% of men; ΔE 33.3 from the original
Deuteranopia#8C98BAno green cones; the most common form, about 1% of men; ΔE 34.8 from the original
Tritanopia#00B6B2no blue cones; rare, and affects men and women equally; ΔE 10.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.66:1WCAG large text: Fail
Contrast with black, large text7.91:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 11.4Dark turquoise · ΔE 13.5Dark cyan · ΔE 14.8Cadetblue · ΔE 14.9Medium turquoise · ΔE 15Teal · ΔE 18.8
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 11.41, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BA2C21
Analogous#21BA78, #2163BA
Triadic#BA21AF, #AFBA21
Split complementary#BA2163, #BA7821
Tetradic#7821BA, #BA2C21, #63BA21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B5EEF2
Lighter +30%#8AE3EA
Lighter +20%#5ED9E3
Lighter +10%#33CFDB
Darker −10%#19868F
Darker −20%#125D63
Darker −30%#0A3538
Darker −40%#020C0D
More saturated +25%#06C6D5
Less saturated −25%#3C989F

Channel breakdown

R33
G175
B186
Red33 (12.9%)
Green175 (68.6%)
Blue186 (72.9%)
Hue184.31°
Saturation (HSL)69.86%
Lightness42.94%
Dominant channelBlue
Hex per channelR 21 · G AF · B BA

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Every value on this page was computed from “21afba” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.