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Recognised as Colour

#21CCBE

  • #21CCBE
  • Cyan
  • Dark
  • Nearest: Turquoise

#21CCBE is a cyan with RGB values 33, 204, 190 and HSL 175°, 72%, 46%. It is a dark colour, so black text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Turquoise.

Colour values

#21CCBE#21CCBE
HEX#21CCBE
RGBrgb(33, 204, 190)
RGB (0–1)0.1294, 0.8, 0.7451
RGB percentages12.9%, 80%, 74.5%
HSLhsl(175.1, 72.2%, 46.5%)
HSV / HSBhsv(175.1, 83.8%, 80%)
CMYK83.8%, 0%, 6.9%, 20%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,215,102
CSS custom property--colour: #21CCBE;

Brightness & contrast

Relative luminance0.47227WCAG 2.x, 0 is black and 1 is white
Perceived brightness169.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.45:1
Contrast with white2.01:1WCAG normal text: Fail
Contrast with black10.45:1WCAG normal text: AAA
Greyscale equivalent#A7A7A7
Inverted#DE3341

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#C1C0BEno red cones; affects about 1% of men; ΔE 43.8 from the original
Deuteranopia#ABB0C0no green cones; the most common form, about 1% of men; ΔE 45 from the original
Tritanopia#00D1C7no blue cones; rare, and affects men and women equally; ΔE 3.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.01:1WCAG large text: Fail
Contrast with black, large text10.45:1WCAG large text: AAA

Named colours

Turquoise · ΔE 7Medium turquoise · ΔE 7.5Dark turquoise · ΔE 9.5Light seagreen · ΔE 10.5Medium aquamarine · ΔE 13.9Aqua · ΔE 19.9
Nearest named CSS colourTurquoise (#40E0D0)ΔE 7, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CC212F
Analogous#21CC68, #2185CC
Triadic#BE21CC, #CCBE21
Split complementary#CC2185, #CC6821
Tetradic#6821CC, #CC212F, #85CC21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C4F5F1
Lighter +30%#98EEE7
Lighter +20%#6CE7DD
Lighter +10%#40E0D3
Darker −10%#1AA095
Darker −20%#13746C
Darker −30%#0C4843
Darker −40%#051C1A
More saturated +25%#03EAD7
Less saturated −25%#3FAEA5

Channel breakdown

R33
G204
B190
Red33 (12.9%)
Green204 (80%)
Blue190 (74.5%)
Hue175.09°
Saturation (HSL)72.15%
Lightness46.47%
Dominant channelGreen
Hex per channelR 21 · G CC · B BE

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