Nerdulator> put something in

Recognised as Colour

#21664D

  • #21664D
  • Cyan
  • Dark
  • Nearest: Teal

#21664D is a cyan with RGB values 33, 102, 77 and HSL 158°, 51%, 26%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#21664D#21664D
HEX#21664D
RGBrgb(33, 102, 77)
RGB (0–1)0.1294, 0.4, 0.302
RGB percentages12.9%, 40%, 30.2%
HSLhsl(158.3, 51.1%, 26.5%)
HSV / HSBhsv(158.3, 67.6%, 40%)
CMYK67.6%, 0%, 24.5%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,188,877
CSS custom property--colour: #21664D;

Brightness & contrast

Relative luminance0.10362WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.84:1
Contrast with white6.84:1WCAG normal text: AA
Contrast with black3.07:1WCAG normal text: Fail
Greyscale equivalent#565656
Inverted#DE99B2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#645F4Cno red cones; affects about 1% of men; ΔE 26.9 from the original
Deuteranopia#5A584Fno green cones; the most common form, about 1% of men; ΔE 27.3 from the original
Tritanopia#00665Fno blue cones; rare, and affects men and women equally; ΔE 11.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.84:1WCAG large text: AAA
Contrast with black, large text3.07:1WCAG large text: AA

Named colours

Teal · ΔE 19.1Sea green · ΔE 21.3Dark slate grey · ΔE 21.4Dark cyan · ΔE 21.9Dark olivegreen · ΔE 24.8Cadetblue · ΔE 28.6
Nearest named CSS colourTeal (#008080)ΔE 19.09, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#66213A
Analogous#21662A, #215D66
Triadic#4D2166, #664D21
Split complementary#66215C, #662A21
Tetradic#2B2166, #66213A, #5D6621

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7ED5B6
Lighter +30%#57C9A0
Lighter +20%#3AB387
Lighter +10%#2D8D6A
Darker −10%#153F30
Darker −20%#081913
Darker −30%#000000
Darker −40%#000000
More saturated +25%#107752
Less saturated −25%#325548

Channel breakdown

R33
G102
B77
Red33 (12.9%)
Green102 (40%)
Blue77 (30.2%)
Hue158.26°
Saturation (HSL)51.11%
Lightness26.47%
Dominant channelGreen
Hex per channelR 21 · G 66 · B 4D

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 “21664d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.