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Recognised as Colour

#0A2F39

  • #0A2F39
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#0A2F39 is a cyan with RGB values 10, 47, 57 and HSL 193°, 70%, 13%. It is a dark colour, so white text on it reaches 14.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#0A2F39#0A2F39
HEX#0A2F39
RGBrgb(10, 47, 57)
RGB (0–1)0.0392, 0.1843, 0.2235
RGB percentages3.9%, 18.4%, 22.4%
HSLhsl(192.8, 70.1%, 13.1%)
HSV / HSBhsv(192.8, 82.5%, 22.4%)
CMYK82.5%, 17.5%, 0%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer667,449
CSS custom property--colour: #0A2F39;

Brightness & contrast

Relative luminance0.02393WCAG 2.x, 0 is black and 1 is white
Perceived brightness41.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.2:1
Contrast with white14.2:1WCAG normal text: AAA
Contrast with black1.48:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#F5D0C6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#292D3Ano red cones; affects about 1% of men; ΔE 10.8 from the original
Deuteranopia#222939no green cones; the most common form, about 1% of men; ΔE 10.7 from the original
Tritanopia#003232no blue cones; rare, and affects men and women equally; ΔE 8.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.2:1WCAG large text: AAA
Contrast with black, large text1.48:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.5Black · ΔE 22Dim grey · ΔE 30.2Slate grey · ΔE 36Teal · ΔE 36.8Gray · ΔE 38.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.5, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#39140A
Analogous#0A392C, #0A1739
Triadic#390A2F, #2F390A
Split complementary#390A17, #392C0A
Tetradic#2C0A39, #39140A, #17390A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#34B8DB
Lighter +30%#219ABB
Lighter +20%#197790
Lighter +10%#125364
Darker −10%#020B0E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#023441
Less saturated −25%#122A31

Channel breakdown

R10
G47
B57
Red10 (3.9%)
Green47 (18.4%)
Blue57 (22.4%)
Hue192.77°
Saturation (HSL)70.15%
Lightness13.14%
Dominant channelBlue
Hex per channelR 0A · G 2F · B 39

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Every value on this page was computed from “0a2f39” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.