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Recognised as Colour

#233B3B

  • #233B3B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#233B3B is a cyan with RGB values 35, 59, 59 and HSL 180°, 26%, 18%. 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

#233B3B#233B3B
HEX#233B3B
RGBrgb(35, 59, 59)
RGB (0–1)0.1373, 0.2314, 0.2314
RGB percentages13.7%, 23.1%, 23.1%
HSLhsl(180, 25.5%, 18.4%)
HSV / HSBhsv(180, 40.7%, 23.1%)
CMYK40.7%, 0%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,308,923
CSS custom property--colour: #233B3B;

Brightness & contrast

Relative luminance0.03801WCAG 2.x, 0 is black and 1 is white
Perceived brightness53 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.93:1
Contrast with white11.93:1WCAG normal text: AAA
Contrast with black1.76:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#DCC4C4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#38393Bno red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#34353Bno green cones; the most common form, about 1% of men; ΔE 10.4 from the original
Tritanopia#193C3Bno blue cones; rare, and affects men and women equally; ΔE 3.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.93:1WCAG large text: AAA
Contrast with black, large text1.76:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 8.6Dim grey · ΔE 23.5Black · ΔE 25Slate grey · ΔE 31.6Gray · ΔE 32.1Teal · ΔE 32.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 8.64, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3B2323
Analogous#233B2F, #232F3B
Triadic#3B233B, #3B3B23
Split complementary#3B232F, #3B2F23
Tetradic#2F233B, #3B2323, #2F3B23

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7AB0B0
Lighter +30%#5C9B9B
Lighter +20%#497B7B
Lighter +10%#365B5B
Darker −10%#101B1B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#174747
Less saturated −25%#2F2F2F

Channel breakdown

R35
G59
B59
Red35 (13.7%)
Green59 (23.1%)
Blue59 (23.1%)
Hue180°
Saturation (HSL)25.53%
Lightness18.43%
Dominant channelGreen and Blue
Hex per channelR 23 · G 3B · B 3B

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Every value on this page was computed from “233b3b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.