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Recognised as Colour

#0A3737

  • #0A3737
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#0A3737 is a cyan with RGB values 10, 55, 55 and HSL 180°, 69%, 13%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#0A3737#0A3737
HEX#0A3737
RGBrgb(10, 55, 55)
RGB (0–1)0.0392, 0.2157, 0.2157
RGB percentages3.9%, 21.6%, 21.6%
HSLhsl(180, 69.2%, 12.7%)
HSV / HSBhsv(180, 81.8%, 21.6%)
CMYK81.8%, 0%, 0%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer669,495
CSS custom property--colour: #0A3737;

Brightness & contrast

Relative luminance0.03073WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.01:1
Contrast with white13.01:1WCAG normal text: AAA
Contrast with black1.61:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#F5C8C8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#333437no red cones; affects about 1% of men; ΔE 15.1 from the original
Deuteranopia#2C2F37no green cones; the most common form, about 1% of men; ΔE 15.4 from the original
Tritanopia#003937no blue cones; rare, and affects men and women equally; ΔE 2.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.01:1WCAG large text: AAA
Contrast with black, large text1.61:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 11.3Black · ΔE 25.4Dim grey · ΔE 28.5Teal · ΔE 31.6Slate grey · ΔE 35.3Dark cyan · ΔE 36
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.3, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#370A0A
Analogous#0A3721, #0A2137
Triadic#370A37, #37370A
Split complementary#370A21, #37210A
Tetradic#210A37, #370A0A, #21370A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#33DADA
Lighter +30%#22B8B8
Lighter +20%#1A8D8D
Lighter +10%#126262
Darker −10%#020C0C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#023F3F
Less saturated −25%#122F2F

Channel breakdown

R10
G55
B55
Red10 (3.9%)
Green55 (21.6%)
Blue55 (21.6%)
Hue180°
Saturation (HSL)69.23%
Lightness12.75%
Dominant channelGreen and Blue
Hex per channelR 0A · G 37 · B 37

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Every value on this page was computed from “0a3737” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.