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Recognised as Colour

#686E8A

  • #686E8A
  • Blue
  • Dark
  • Nearest: Slate grey

#686E8A is a blue with RGB values 104, 110, 138 and HSL 229°, 14%, 47%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#686E8A#686E8A
HEX#686E8A
RGBrgb(104, 110, 138)
RGB (0–1)0.4078, 0.4314, 0.5412
RGB percentages40.8%, 43.1%, 54.1%
HSLhsl(229.4, 14%, 47.5%)
HSV / HSBhsv(229.4, 24.6%, 54.1%)
CMYK24.6%, 20.3%, 0%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,844,042
CSS custom property--colour: #686E8A;

Brightness & contrast

Relative luminance0.1593WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.02:1
Contrast with white5.02:1WCAG normal text: AA
Contrast with black4.19:1WCAG normal text: Fail
Greyscale equivalent#6F6F6F
Inverted#979175

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#66718Bno red cones; affects about 1% of men; ΔE 2.4 from the original
Deuteranopia#646E89no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#607377no blue cones; rare, and affects men and women equally; ΔE 15.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.02:1WCAG large text: AAA
Contrast with black, large text4.19:1WCAG large text: AA

Named colours

Slate grey · ΔE 10.4Light slate grey · ΔE 12.2Dim grey · ΔE 16.8Gray · ΔE 18Steel blue · ΔE 19Dark slate grey · ΔE 25.6
Nearest named CSS colourSlate grey (#708090)ΔE 10.37, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A8468
Analogous#687F8A, #73688A
Triadic#8A686E, #6E8A68
Split complementary#8A7368, #7F8A68
Tetradic#8A687F, #8A8468, #688A73

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DBDCE3
Lighter +30%#BDC0CE
Lighter +20%#A0A4B8
Lighter +10%#8389A2
Darker −10%#52576D
Darker −20%#3C4050
Darker −30%#262833
Darker −40%#101116
More saturated +25%#4A5AA8
Less saturated −25%#797979

Channel breakdown

R104
G110
B138
Red104 (40.8%)
Green110 (43.1%)
Blue138 (54.1%)
Hue229.41°
Saturation (HSL)14.05%
Lightness47.45%
Dominant channelBlue
Hex per channelR 68 · G 6E · B 8A

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Every value on this page was computed from “686e8a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.