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Colour

#819AB3

  • #819AB3
  • Blue
  • Dark
  • Nearest: Light slate grey

#819AB3 is a blue with RGB values 129, 154, 179 and HSL 210°, 25%, 60%. 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

#819AB3#819AB3
HEX#819AB3
RGBrgb(129, 154, 179)
RGB (0–1)0.5059, 0.6039, 0.702
RGB percentages50.6%, 60.4%, 70.2%
HSLhsl(210, 24.8%, 60.4%)
HSV / HSBhsv(210, 27.9%, 70.2%)
CMYK27.9%, 14%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,493,747
CSS custom property--colour: #819AB3;

Brightness & contrast

Relative luminance0.31033WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.21:1
Contrast with white2.91:1WCAG normal text: Fail
Contrast with black7.21:1WCAG normal text: AAA
Greyscale equivalent#969696
Inverted#7E654C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#919AB4no red cones; affects about 1% of men; ΔE 5.6 from the original
Deuteranopia#8A95B3no green cones; the most common form, about 1% of men; ΔE 5.8 from the original
Tritanopia#73A0A2no blue cones; rare, and affects men and women equally; ΔE 15.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.91:1WCAG large text: Fail
Contrast with black, large text7.21:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 8.2Slate grey · ΔE 11.1Light steelblue · ΔE 16Dark grey · ΔE 17.5Gray · ΔE 18.4Cadetblue · ΔE 18.8
Nearest named CSS colourLight slate grey (#778899)ΔE 8.18, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B39A81
Analogous#81B3B3, #8181B3
Triadic#B3819A, #9AB381
Split complementary#B38181, #B3B381
Tetradic#B381B3, #B39A81, #81B381

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E0E7ED
Lighter +20%#C1CDD9
Lighter +10%#A1B3C6
Darker −10%#6181A0
Darker −20%#4E6780
Darker −30%#3A4E61
Darker −40%#273441
More saturated +25%#689ACC
Less saturated −25%#9A9A9A

Channel breakdown

R129
G154
B179
Red129 (50.6%)
Green154 (60.4%)
Blue179 (70.2%)
Hue210°
Saturation (HSL)24.75%
Lightness60.39%
Dominant channelBlue
Hex per channelR 81 · G 9A · B B3

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Every value on this page was computed from “819ab3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.