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Colour

#307D81

  • #307D81
  • Cyan
  • Dark
  • Nearest: Teal

#307D81 is a cyan with RGB values 48, 125, 129 and HSL 183°, 46%, 35%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#307D81#307D81
HEX#307D81
RGBrgb(48, 125, 129)
RGB (0–1)0.1882, 0.4902, 0.5059
RGB percentages18.8%, 49%, 50.6%
HSLhsl(183, 45.8%, 34.7%)
HSV / HSBhsv(183, 62.8%, 50.6%)
CMYK62.8%, 3.1%, 0%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,177,857
CSS custom property--colour: #307D81;

Brightness & contrast

Relative luminance0.16881WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.8:1
Contrast with white4.8:1WCAG normal text: AA
Contrast with black4.38:1WCAG normal text: Fail
Greyscale equivalent#6D6D6D
Inverted#CF827E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#747881no red cones; affects about 1% of men; ΔE 22.8 from the original
Deuteranopia#686E81no green cones; the most common form, about 1% of men; ΔE 24.2 from the original
Tritanopia#00817Eno blue cones; rare, and affects men and women equally; ΔE 8.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.8:1WCAG large text: AAA
Contrast with black, large text4.38:1WCAG large text: AA

Named colours

Teal · ΔE 6.9Dark cyan · ΔE 9.6Cadetblue · ΔE 13.4Slate grey · ΔE 20.4Dark slate grey · ΔE 20.5Light slate grey · ΔE 21.3
Nearest named CSS colourTeal (#008080)ΔE 6.92, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#813430
Analogous#30815D, #305481
Triadic#81307D, #7D8130
Split complementary#813054, #815D30
Tetradic#5D3081, #813430, #548130

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A1D9DC
Lighter +30%#7CCACE
Lighter +20%#57BBC0
Lighter +10%#3EA1A6
Darker −10%#22595C
Darker −20%#143537
Darker −30%#071111
Darker −40%#000000
More saturated +25%#1A9197
Less saturated −25%#46696B

Channel breakdown

R48
G125
B129
Red48 (18.8%)
Green125 (49%)
Blue129 (50.6%)
Hue182.96°
Saturation (HSL)45.76%
Lightness34.71%
Dominant channelBlue
Hex per channelR 30 · G 7D · B 81

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Every value on this page was computed from “307d81” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.