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Recognised as Colour

#42656B

  • #42656B
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#42656B is a cyan with RGB values 66, 101, 107 and HSL 189°, 24%, 34%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark slate grey.

Colour values

#42656B#42656B
HEX#42656B
RGBrgb(66, 101, 107)
RGB (0–1)0.2588, 0.3961, 0.4196
RGB percentages25.9%, 39.6%, 42%
HSLhsl(188.8, 23.7%, 33.9%)
HSV / HSBhsv(188.8, 38.3%, 42%)
CMYK38.3%, 5.6%, 0%, 58%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,351,339
CSS custom property--colour: #42656B;

Brightness & contrast

Relative luminance0.11527WCAG 2.x, 0 is black and 1 is white
Perceived brightness92.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.35:1
Contrast with white6.35:1WCAG normal text: AA
Contrast with black3.31:1WCAG normal text: Fail
Greyscale equivalent#5E5E5E
Inverted#BD9A94

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5F626Bno red cones; affects about 1% of men; ΔE 11.9 from the original
Deuteranopia#585D6Bno green cones; the most common form, about 1% of men; ΔE 12.3 from the original
Tritanopia#326867no blue cones; rare, and affects men and women equally; ΔE 7.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.35:1WCAG large text: AAA
Contrast with black, large text3.31:1WCAG large text: AA

Named colours

Dark slate grey · ΔE 9.9Dim grey · ΔE 13.7Slate grey · ΔE 15.5Light slate grey · ΔE 18.1Gray · ΔE 18.6Teal · ΔE 19.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 9.94, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6B4842
Analogous#426B5D, #42516B
Triadic#6B4265, #656B42
Split complementary#6B4251, #6B5C42
Tetradic#5C426B, #6B4842, #516B42

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ADC8CC
Lighter +30%#8DB2B9
Lighter +20%#6E9DA5
Lighter +10%#55838B
Darker −10%#2F474B
Darker −20%#1B292C
Darker −30%#080C0C
Darker −40%#000000
More saturated +25%#2C7481
Less saturated −25%#575757

Channel breakdown

R66
G101
B107
Red66 (25.9%)
Green101 (39.6%)
Blue107 (42%)
Hue188.78°
Saturation (HSL)23.7%
Lightness33.92%
Dominant channelBlue
Hex per channelR 42 · G 65 · B 6B

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Every value on this page was computed from “42656b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.