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Recognised as Colour

#0A2D31

  • #0A2D31
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#0A2D31 is a cyan with RGB values 10, 45, 49 and HSL 186°, 66%, 12%. It is a dark colour, so white text on it reaches 14.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#0A2D31#0A2D31
HEX#0A2D31
RGBrgb(10, 45, 49)
RGB (0–1)0.0392, 0.1765, 0.1922
RGB percentages3.9%, 17.6%, 19.2%
HSLhsl(186.2, 66.1%, 11.6%)
HSV / HSBhsv(186.2, 79.6%, 19.2%)
CMYK79.6%, 8.2%, 0%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer666,929
CSS custom property--colour: #0A2D31;

Brightness & contrast

Relative luminance0.02163WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.66:1
Contrast with white14.66:1WCAG normal text: AAA
Contrast with black1.43:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#F5D2CE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#292B31no red cones; affects about 1% of men; ΔE 11.6 from the original
Deuteranopia#232731no green cones; the most common form, about 1% of men; ΔE 11.8 from the original
Tritanopia#002F2Eno blue cones; rare, and affects men and women equally; ΔE 5.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.66:1WCAG large text: AAA
Contrast with black, large text1.43:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.2Black · ΔE 20.5Dim grey · ΔE 30.7Teal · ΔE 36.8Slate grey · ΔE 37.8Gray · ΔE 39.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.18, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#310E0A
Analogous#0A3122, #0A1931
Triadic#310A2D, #2D310A
Split complementary#310A19, #31220A
Tetradic#220A31, #310E0A, #19310A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#32C4D5
Lighter +30%#24A2B0
Lighter +20%#1B7B86
Lighter +10%#13545B
Darker −10%#010607
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#033338
Less saturated −25%#11272A

Channel breakdown

R10
G45
B49
Red10 (3.9%)
Green45 (17.6%)
Blue49 (19.2%)
Hue186.15°
Saturation (HSL)66.1%
Lightness11.57%
Dominant channelBlue
Hex per channelR 0A · G 2D · B 31

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Every value on this page was computed from “0a2d31” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.