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Recognised as Colour

#203D40

  • #203D40
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#203D40 is a cyan with RGB values 32, 61, 64 and HSL 186°, 33%, 19%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#203D40#203D40
HEX#203D40
RGBrgb(32, 61, 64)
RGB (0–1)0.1255, 0.2392, 0.251
RGB percentages12.5%, 23.9%, 25.1%
HSLhsl(185.6, 33.3%, 18.8%)
HSV / HSBhsv(185.6, 50%, 25.1%)
CMYK50%, 4.7%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,112,832
CSS custom property--colour: #203D40;

Brightness & contrast

Relative luminance0.04015WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.65:1
Contrast with white11.65:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#DFC2BF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#393B40no red cones; affects about 1% of men; ΔE 10.5 from the original
Deuteranopia#343740no green cones; the most common form, about 1% of men; ΔE 11 from the original
Tritanopia#103F3Eno blue cones; rare, and affects men and women equally; ΔE 5.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.65:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 7.9Dim grey · ΔE 23.5Black · ΔE 26.2Slate grey · ΔE 30.6Teal · ΔE 31.1Gray · ΔE 31.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 7.9, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#402320
Analogous#204033, #202D40
Triadic#40203D, #3D4020
Split complementary#40202D, #403320
Tetradic#332040, #402320, #2D4020

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#73B2B9
Lighter +30%#539EA6
Lighter +20%#427E84
Lighter +10%#315D62
Darker −10%#0F1D1E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#14474C
Less saturated −25%#2C3334

Channel breakdown

R32
G61
B64
Red32 (12.5%)
Green61 (23.9%)
Blue64 (25.1%)
Hue185.63°
Saturation (HSL)33.33%
Lightness18.82%
Dominant channelBlue
Hex per channelR 20 · G 3D · B 40

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Every value on this page was computed from “203d40” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.