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Colour

#013237

  • #013237
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#013237 is a cyan with RGB values 1, 50, 55 and HSL 186°, 96%, 11%. It is a dark colour, so white text on it reaches 13.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#013237#013237
HEX#013237
RGBrgb(1, 50, 55)
RGB (0–1)0.0039, 0.1961, 0.2157
RGB percentages0.4%, 19.6%, 21.6%
HSLhsl(185.6, 96.4%, 11%)
HSV / HSBhsv(185.6, 98.2%, 21.6%)
CMYK98.2%, 9.1%, 0%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer78,391
CSS custom property--colour: #013237;

Brightness & contrast

Relative luminance0.02563WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.88:1
Contrast with white13.88:1WCAG normal text: AAA
Contrast with black1.51:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#FECDC8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2D2F37no red cones; affects about 1% of men; ΔE 14.5 from the original
Deuteranopia#252A37no green cones; the most common form, about 1% of men; ΔE 14.7 from the original
Tritanopia#003533no blue cones; rare, and affects men and women equally; ΔE 5.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.88:1WCAG large text: AAA
Contrast with black, large text1.51:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.7Black · ΔE 23.7Dim grey · ΔE 30.3Teal · ΔE 33.9Slate grey · ΔE 36.5Dark cyan · ΔE 38.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.68, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#370601
Analogous#013721, #011737
Triadic#370132, #323701
Split complementary#370117, #372101
Tetradic#210137, #370601, #173701

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#09E4FB
Lighter +30%#04BBCD
Lighter +20%#038D9B
Lighter +10%#026069
Darker −10%#000405
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003338
Less saturated −25%#082C30

Channel breakdown

R1
G50
B55
Red1 (0.4%)
Green50 (19.6%)
Blue55 (21.6%)
Hue185.56°
Saturation (HSL)96.43%
Lightness10.98%
Dominant channelBlue
Hex per channelR 01 · G 32 · B 37

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Every value on this page was computed from “hex 013237” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.