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Colour

#375B5B

  • #375B5B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#375B5B is a cyan with RGB values 55, 91, 91 and HSL 180°, 25%, 29%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#375B5B#375B5B
HEX#375B5B
RGBrgb(55, 91, 91)
RGB (0–1)0.2157, 0.3569, 0.3569
RGB percentages21.6%, 35.7%, 35.7%
HSLhsl(180, 24.7%, 28.6%)
HSV / HSBhsv(180, 39.6%, 35.7%)
CMYK39.6%, 0%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,627,867
CSS custom property--colour: #375B5B;

Brightness & contrast

Relative luminance0.0905WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.47:1
Contrast with white7.47:1WCAG normal text: AAA
Contrast with black2.81:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#C8A4A4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#57585Bno red cones; affects about 1% of men; ΔE 13.4 from the original
Deuteranopia#50535Bno green cones; the most common form, about 1% of men; ΔE 13.6 from the original
Tritanopia#285D5Bno blue cones; rare, and affects men and women equally; ΔE 5.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.47:1WCAG large text: AAA
Contrast with black, large text2.81:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 5Dim grey · ΔE 15.9Teal · ΔE 20.6Slate grey · ΔE 20.9Gray · ΔE 22.1Light slate grey · ΔE 23.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 4.97, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B3737
Analogous#375B49, #37495B
Triadic#5B375B, #5B5B37
Split complementary#5B3749, #5B4937
Tetradic#49375B, #5B3737, #495B37

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9BC3C3
Lighter +30%#7BB0B0
Lighter +20%#5D9B9B
Lighter +10%#4A7B7B
Darker −10%#243B3B
Darker −20%#111B1B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#256D6D
Less saturated −25%#494949

Channel breakdown

R55
G91
B91
Red55 (21.6%)
Green91 (35.7%)
Blue91 (35.7%)
Hue180°
Saturation (HSL)24.66%
Lightness28.63%
Dominant channelGreen and Blue
Hex per channelR 37 · G 5B · B 5B

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Every value on this page was computed from “375b5b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.