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Colour

#21BF98

  • #21BF98
  • Cyan
  • Dark
  • Nearest: Medium aquamarine

#21BF98 is a cyan with RGB values 33, 191, 152 and HSL 165°, 71%, 44%. It is a dark colour, so black text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Medium aquamarine.

Colour values

#21BF98#21BF98
HEX#21BF98
RGBrgb(33, 191, 152)
RGB (0–1)0.1294, 0.749, 0.5961
RGB percentages12.9%, 74.9%, 59.6%
HSLhsl(165.2, 70.5%, 43.9%)
HSV / HSBhsv(165.2, 82.7%, 74.9%)
CMYK82.7%, 0%, 20.4%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,211,736
CSS custom property--colour: #21BF98;

Brightness & contrast

Relative luminance0.39852WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.97:1
Contrast with white2.34:1WCAG normal text: Fail
Contrast with black8.97:1WCAG normal text: AAA
Greyscale equivalent#9B9B9B
Inverted#DE4067

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B9B296no red cones; affects about 1% of men; ΔE 46.3 from the original
Deuteranopia#A6A49Bno green cones; the most common form, about 1% of men; ΔE 47.2 from the original
Tritanopia#00C0B4no blue cones; rare, and affects men and women equally; ΔE 15.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.34:1WCAG large text: Fail
Contrast with black, large text8.97:1WCAG large text: AAA

Named colours

Medium aquamarine · ΔE 11.5Medium seagreen · ΔE 16Turquoise · ΔE 17.9Light seagreen · ΔE 18.7Medium turquoise · ΔE 21.5Sea green · ΔE 22.6
Nearest named CSS colourMedium aquamarine (#66CDAA)ΔE 11.49, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF2148
Analogous#21BF49, #2197BF
Triadic#9821BF, #BF9821
Split complementary#BF2197, #BF4921
Tetradic#4921BF, #BF2148, #97BF21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9F3E5
Lighter +30%#8EEBD4
Lighter +20%#62E4C4
Lighter +10%#37DCB3
Darker −10%#199475
Darker −20%#126853
Darker −30%#0A3D30
Darker −40%#03110E
More saturated +25%#05DBA6
Less saturated −25%#3DA38A

Channel breakdown

R33
G191
B152
Red33 (12.9%)
Green191 (74.9%)
Blue152 (59.6%)
Hue165.19°
Saturation (HSL)70.54%
Lightness43.92%
Dominant channelGreen
Hex per channelR 21 · G BF · B 98

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Every value on this page was computed from “21bf98” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.