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Recognised as Colour

#37535A

  • #37535A
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#37535A is a cyan with RGB values 55, 83, 90 and HSL 192°, 24%, 28%. It is a dark colour, so white text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#37535A#37535A
HEX#37535A
RGBrgb(55, 83, 90)
RGB (0–1)0.2157, 0.3255, 0.3529
RGB percentages21.6%, 32.5%, 35.3%
HSLhsl(192, 24.1%, 28.4%)
HSV / HSBhsv(192, 38.9%, 35.3%)
CMYK38.9%, 7.8%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,625,818
CSS custom property--colour: #37535A;

Brightness & contrast

Relative luminance0.07737WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.24:1
Contrast with white8.24:1WCAG normal text: AAA
Contrast with black2.55:1WCAG normal text: Fail
Greyscale equivalent#4E4E4E
Inverted#C8ACA5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4E515Ano red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#484D5Ano green cones; the most common form, about 1% of men; ΔE 9.6 from the original
Tritanopia#2A5655no blue cones; rare, and affects men and women equally; ΔE 7.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.24:1WCAG large text: AAA
Contrast with black, large text2.55:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 5.4Dim grey · ΔE 15.7Slate grey · ΔE 20.6Gray · ΔE 23.1Light slate grey · ΔE 23.6Teal · ΔE 25.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 5.4, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A3E37
Analogous#375A50, #37425A
Triadic#5A3753, #535A37
Split complementary#5A3742, #5A5037
Tetradic#50375A, #5A3E37, #425A37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9BBAC2
Lighter +30%#7BA4AF
Lighter +20%#5E8D99
Lighter +10%#4A707A
Darker −10%#24363A
Darker −20%#10191B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#255E6C
Less saturated −25%#494949

Channel breakdown

R55
G83
B90
Red55 (21.6%)
Green83 (32.5%)
Blue90 (35.3%)
Hue192°
Saturation (HSL)24.14%
Lightness28.43%
Dominant channelBlue
Hex per channelR 37 · G 53 · B 5A

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Every value on this page was computed from “37535a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.