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Colour

#8399B2

  • #8399B2
  • Blue
  • Dark
  • Nearest: Light slate grey

#8399B2 is a blue with RGB values 131, 153, 178 and HSL 212°, 23%, 61%. It is a dark colour, so black text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Light slate grey.

Colour values

#8399B2#8399B2
HEX#8399B2
RGBrgb(131, 153, 178)
RGB (0–1)0.5137, 0.6, 0.698
RGB percentages51.4%, 60%, 69.8%
HSLhsl(211.9, 23.4%, 60.6%)
HSV / HSBhsv(211.9, 26.4%, 69.8%)
CMYK26.4%, 14%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,624,562
CSS custom property--colour: #8399B2;

Brightness & contrast

Relative luminance0.30822WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.16:1
Contrast with white2.93:1WCAG normal text: Fail
Contrast with black7.16:1WCAG normal text: AAA
Greyscale equivalent#969696
Inverted#7C664D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9099B3no red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#8A95B1no green cones; the most common form, about 1% of men; ΔE 4.3 from the original
Tritanopia#769FA1no blue cones; rare, and affects men and women equally; ΔE 15.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.93:1WCAG large text: Fail
Contrast with black, large text7.16:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 7.8Slate grey · ΔE 10.8Light steelblue · ΔE 16.1Dark grey · ΔE 17.1Gray · ΔE 18Steel blue · ΔE 19.5
Nearest named CSS colourLight slate grey (#778899)ΔE 7.83, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B29C83
Analogous#83B0B2, #8583B2
Triadic#B28399, #99B283
Split complementary#B28483, #B1B283
Tetradic#B283B0, #B29C83, #83B284

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E1E7ED
Lighter +20%#C2CDD9
Lighter +10%#A2B3C6
Darker −10%#647F9E
Darker −20%#4F6680
Darker −30%#3C4D60
Darker −40%#283441
More saturated +25%#6A97CB
Less saturated −25%#9B9B9B

Channel breakdown

R131
G153
B178
Red131 (51.4%)
Green153 (60%)
Blue178 (69.8%)
Hue211.91°
Saturation (HSL)23.38%
Lightness60.59%
Dominant channelBlue
Hex per channelR 83 · G 99 · B B2

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Every value on this page was computed from “8399b2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.