Nerdulator> put something in

Recognised as Colour

#21BFBE

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

#21BFBE is a cyan with RGB values 33, 191, 190 and HSL 180°, 71%, 44%. It is a dark colour, so black text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#21BFBE#21BFBE
HEX#21BFBE
RGBrgb(33, 191, 190)
RGB (0–1)0.1294, 0.749, 0.7451
RGB percentages12.9%, 74.9%, 74.5%
HSLhsl(179.6, 70.5%, 43.9%)
HSV / HSBhsv(179.6, 82.7%, 74.9%)
CMYK82.7%, 0%, 0.5%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,211,774
CSS custom property--colour: #21BFBE;

Brightness & contrast

Relative luminance0.41303WCAG 2.x, 0 is black and 1 is white
Perceived brightness160.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.26:1
Contrast with white2.27:1WCAG normal text: Fail
Contrast with black9.26:1WCAG normal text: AAA
Greyscale equivalent#9D9D9D
Inverted#DE4041

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#B2B5BEno red cones; affects about 1% of men; ΔE 38.7 from the original
Deuteranopia#9DA6BFno green cones; the most common form, about 1% of men; ΔE 39.8 from the original
Tritanopia#00C5BEno blue cones; rare, and affects men and women equally; ΔE 5.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.27:1WCAG large text: Fail
Contrast with black, large text9.26:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 6.2Dark turquoise · ΔE 6.3Medium turquoise · ΔE 6.8Turquoise · ΔE 14.3Dark cyan · ΔE 19.5Medium aquamarine · ΔE 19.6
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 6.21, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF2122
Analogous#21BF6F, #2171BF
Triadic#BE21BF, #BFBE21
Split complementary#BF2171, #BF6F21
Tetradic#6F21BF, #BF2122, #71BF21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9F3F3
Lighter +30%#8EEBEB
Lighter +20%#62E4E3
Lighter +10%#37DCDB
Darker −10%#199493
Darker −20%#126867
Darker −30%#0A3D3C
Darker −40%#031111
More saturated +25%#05DBDA
Less saturated −25%#3DA3A2

Channel breakdown

R33
G191
B190
Red33 (12.9%)
Green191 (74.9%)
Blue190 (74.5%)
Hue179.62°
Saturation (HSL)70.54%
Lightness43.92%
Dominant channelGreen
Hex per channelR 21 · G BF · B BE

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

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