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Colour

#21B194

  • #21B194
  • Cyan
  • Dark
  • Nearest: Light seagreen

#21B194 is a cyan with RGB values 33, 177, 148 and HSL 168°, 69%, 41%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#21B194#21B194
HEX#21B194
RGBrgb(33, 177, 148)
RGB (0–1)0.1294, 0.6941, 0.5804
RGB percentages12.9%, 69.4%, 58%
HSLhsl(167.9, 68.6%, 41.2%)
HSV / HSBhsv(167.9, 81.4%, 69.4%)
CMYK81.4%, 0%, 16.4%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,208,148
CSS custom property--colour: #21B194;

Brightness & contrast

Relative luminance0.33906WCAG 2.x, 0 is black and 1 is white
Perceived brightness145.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.78:1
Contrast with white2.7:1WCAG normal text: Fail
Contrast with black7.78:1WCAG normal text: AAA
Greyscale equivalent#909090
Inverted#DE4E6B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#AAA593no red cones; affects about 1% of men; ΔE 42.2 from the original
Deuteranopia#999896no green cones; the most common form, about 1% of men; ΔE 43.3 from the original
Tritanopia#00B3A8no blue cones; rare, and affects men and women equally; ΔE 10.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.7:1WCAG large text: Fail
Contrast with black, large text7.78:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 12.3Medium aquamarine · ΔE 12.4Turquoise · ΔE 18.5Medium turquoise · ΔE 18.5Medium seagreen · ΔE 20.4Sea green · ΔE 20.7
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 12.27, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B1213E
Analogous#21B14C, #2186B1
Triadic#9421B1, #B19421
Split complementary#B12186, #B14C21
Tetradic#4C21B1, #B1213E, #86B121

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AEF0E3
Lighter +30%#83E8D4
Lighter +20%#58E0C5
Lighter +10%#2DD8B5
Darker −10%#198670
Darker −20%#115B4C
Darker −30%#093028
Darker −40%#010504
More saturated +25%#07CBA4
Less saturated −25%#3B9784

Channel breakdown

R33
G177
B148
Red33 (12.9%)
Green177 (69.4%)
Blue148 (58%)
Hue167.92°
Saturation (HSL)68.57%
Lightness41.18%
Dominant channelGreen
Hex per channelR 21 · G B1 · B 94

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Every value on this page was computed from “21b194” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.