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Recognised as Colour

#37484B

  • #37484B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#37484B is a cyan with RGB values 55, 72, 75 and HSL 189°, 15%, 25%. It is a dark colour, so white text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#37484B#37484B
HEX#37484B
RGBrgb(55, 72, 75)
RGB (0–1)0.2157, 0.2824, 0.2941
RGB percentages21.6%, 28.2%, 29.4%
HSLhsl(189, 15.4%, 25.5%)
HSV / HSBhsv(189, 26.7%, 29.4%)
CMYK26.7%, 4%, 0%, 70.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,622,987
CSS custom property--colour: #37484B;

Brightness & contrast

Relative luminance0.05955WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.58:1
Contrast with white9.58:1WCAG normal text: AAA
Contrast with black2.19:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#C8B7B4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#45474Bno red cones; affects about 1% of men; ΔE 6.2 from the original
Deuteranopia#42444Bno green cones; the most common form, about 1% of men; ΔE 6.7 from the original
Tritanopia#314A49no blue cones; rare, and affects men and women equally; ΔE 4.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.58:1WCAG large text: AAA
Contrast with black, large text2.19:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 6.2Dim grey · ΔE 16.7Slate grey · ΔE 24.7Gray · ΔE 25.3Light slate grey · ΔE 27.8Teal · ΔE 30.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 6.15, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4B3A37
Analogous#374B44, #373E4B
Triadic#4B3748, #484B37
Split complementary#4B373E, #4B4437
Tetradic#44374B, #4B3A37, #3E4B37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#99B0B5
Lighter +30%#7C9A9F
Lighter +20%#628086
Lighter +10%#4D6468
Darker −10%#212C2E
Darker −20%#0C1010
Darker −30%#000000
Darker −40%#000000
More saturated +25%#27535B
Less saturated −25%#414141

Channel breakdown

R55
G72
B75
Red55 (21.6%)
Green72 (28.2%)
Blue75 (29.4%)
Hue189°
Saturation (HSL)15.38%
Lightness25.49%
Dominant channelBlue
Hex per channelR 37 · G 48 · B 4B

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Every value on this page was computed from “37484b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.