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Colour

#243B3C

  • #243B3C
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#243B3C is a cyan with RGB values 36, 59, 60 and HSL 183°, 25%, 19%. It is a dark colour, so white text on it reaches 11.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#243B3C#243B3C
HEX#243B3C
RGBrgb(36, 59, 60)
RGB (0–1)0.1412, 0.2314, 0.2353
RGB percentages14.1%, 23.1%, 23.5%
HSLhsl(182.5, 25%, 18.8%)
HSV / HSBhsv(182.5, 40%, 23.5%)
CMYK40%, 1.7%, 0%, 76.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,374,460
CSS custom property--colour: #243B3C;

Brightness & contrast

Relative luminance0.03829WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.89:1
Contrast with white11.89:1WCAG normal text: AAA
Contrast with black1.77:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#DBC4C3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#38393Cno red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#34363Cno green cones; the most common form, about 1% of men; ΔE 9.3 from the original
Tritanopia#1B3D3Bno blue cones; rare, and affects men and women equally; ΔE 4.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.89:1WCAG large text: AAA
Contrast with black, large text1.77:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 8.7Dim grey · ΔE 23.3Black · ΔE 24.9Slate grey · ΔE 31.3Gray · ΔE 31.9Teal · ΔE 32.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 8.72, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3C2524
Analogous#243C31, #242F3C
Triadic#3C243B, #3B3C24
Split complementary#3C242F, #3C3124
Tetradic#31243C, #3C2524, #2F3C24

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7CAEB0
Lighter +30%#5D999C
Lighter +20%#4A7A7C
Lighter +10%#375A5C
Darker −10%#111C1C
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#184648
Less saturated −25%#303030

Channel breakdown

R36
G59
B60
Red36 (14.1%)
Green59 (23.1%)
Blue60 (23.5%)
Hue182.5°
Saturation (HSL)25%
Lightness18.82%
Dominant channelBlue
Hex per channelR 24 · G 3B · B 3C

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Every value on this page was computed from “243b3c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.