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Recognised as Colour

#6C8399

  • #6C8399
  • Blue
  • Dark
  • Nearest: Light slate grey

#6C8399 is a blue with RGB values 108, 131, 153 and HSL 209°, 18%, 51%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Light slate grey.

Colour values

#6C8399#6C8399
HEX#6C8399
RGBrgb(108, 131, 153)
RGB (0–1)0.4235, 0.5137, 0.6
RGB percentages42.4%, 51.4%, 60%
HSLhsl(209.3, 18.1%, 51.2%)
HSV / HSBhsv(209.3, 29.4%, 60%)
CMYK29.4%, 14.4%, 0%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,111,577
CSS custom property--colour: #6C8399;

Brightness & contrast

Relative luminance0.21721WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.34:1
Contrast with white3.93:1WCAG normal text: Fail
Contrast with black5.34:1WCAG normal text: AA
Greyscale equivalent#808080
Inverted#937C66

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7B839Ano red cones; affects about 1% of men; ΔE 5.4 from the original
Deuteranopia#757E99no green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#5F888Ano blue cones; rare, and affects men and women equally; ΔE 13.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.93:1WCAG large text: AA
Contrast with black, large text5.34:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 4.1Slate grey · ΔE 4.1Gray · ΔE 14.8Dim grey · ΔE 17.5Steel blue · ΔE 17.8Cadetblue · ΔE 19.6
Nearest named CSS colourLight slate grey (#778899)ΔE 4.08, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#99826C
Analogous#6C9999, #6C6C99
Triadic#996C83, #83996C
Split complementary#996C6C, #99996C
Tetradic#996C99, #99826C, #6C996C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E4E9ED
Lighter +30%#C6CFD8
Lighter +20%#A8B6C3
Lighter +10%#8A9CAE
Darker −10%#56697C
Darker −20%#41505E
Darker −30%#2C3640
Darker −40%#171D22
More saturated +25%#4D84B8
Less saturated −25%#838383

Channel breakdown

R108
G131
B153
Red108 (42.4%)
Green131 (51.4%)
Blue153 (60%)
Hue209.33°
Saturation (HSL)18.07%
Lightness51.18%
Dominant channelBlue
Hex per channelR 6C · G 83 · B 99

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Every value on this page was computed from “6c8399” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.