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Recognised as Colour

#243A38

  • #243A38
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#243A38 is a cyan with RGB values 36, 58, 56 and HSL 175°, 23%, 18%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#243A38#243A38
HEX#243A38
RGBrgb(36, 58, 56)
RGB (0–1)0.1412, 0.2275, 0.2196
RGB percentages14.1%, 22.7%, 22%
HSLhsl(174.5, 23.4%, 18.4%)
HSV / HSBhsv(174.5, 37.9%, 22.7%)
CMYK37.9%, 0%, 3.4%, 77.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,374,200
CSS custom property--colour: #243A38;

Brightness & contrast

Relative luminance0.03687WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.09:1
Contrast with white12.09:1WCAG normal text: AAA
Contrast with black1.74:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#DBC5C7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#383838no red cones; affects about 1% of men; ΔE 9.4 from the original
Deuteranopia#343538no green cones; the most common form, about 1% of men; ΔE 9.5 from the original
Tritanopia#1C3B39no blue cones; rare, and affects men and women equally; ΔE 3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.09:1WCAG large text: AAA
Contrast with black, large text1.74:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9.3Dim grey · ΔE 23.7Black · ΔE 24.5Slate grey · ΔE 32.3Gray · ΔE 32.4Teal · ΔE 33
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.27, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3A2426
Analogous#243A2D, #24313A
Triadic#38243A, #3A3824
Split complementary#3A2431, #3A2D24
Tetradic#2D243A, #3A2426, #313A24

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7CAEA9
Lighter +30%#5F9893
Lighter +20%#4B7975
Lighter +10%#385956
Darker −10%#101B1A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#184642
Less saturated −25%#2F2F2F

Channel breakdown

R36
G58
B56
Red36 (14.1%)
Green58 (22.7%)
Blue56 (22%)
Hue174.55°
Saturation (HSL)23.4%
Lightness18.43%
Dominant channelGreen
Hex per channelR 24 · G 3A · B 38

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Every value on this page was computed from “243a38” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.