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Recognised as Colour

#658AAD

  • #658AAD
  • Blue
  • Dark
  • Nearest: Steel blue

#658AAD is a blue with RGB values 101, 138, 173 and HSL 209°, 31%, 54%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#658AAD#658AAD
HEX#658AAD
RGBrgb(101, 138, 173)
RGB (0–1)0.3961, 0.5412, 0.6784
RGB percentages39.6%, 54.1%, 67.8%
HSLhsl(209.2, 30.5%, 53.7%)
HSV / HSBhsv(209.2, 41.6%, 67.8%)
CMYK41.6%, 20.2%, 0%, 32.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,654,637
CSS custom property--colour: #658AAD;

Brightness & contrast

Relative luminance0.23961WCAG 2.x, 0 is black and 1 is white
Perceived brightness132.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.79:1
Contrast with white3.63:1WCAG normal text: Fail
Contrast with black5.79:1WCAG normal text: AA
Greyscale equivalent#858585
Inverted#9A7552

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7C8BAFno red cones; affects about 1% of men; ΔE 7.1 from the original
Deuteranopia#7383ACno green cones; the most common form, about 1% of men; ΔE 7.9 from the original
Tritanopia#4A9296no blue cones; rare, and affects men and women equally; ΔE 22.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.63:1WCAG large text: AA
Contrast with black, large text5.79:1WCAG large text: AAA

Named colours

Steel blue · ΔE 10.3Light slate grey · ΔE 11.5Slate grey · ΔE 12.4Cadetblue · ΔE 22.7Gray · ΔE 22.9Light steelblue · ΔE 23.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 10.34, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AD8865
Analogous#65ADAC, #6566AD
Triadic#AD658A, #8AAD65
Split complementary#AD6566, #ADAC65
Tetradic#AC65AD, #AD8865, #66AD65

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EAEFF4
Lighter +30%#C9D6E2
Lighter +20%#A8BDD0
Lighter +10%#86A3BF
Darker −10%#4D7092
Darker −20%#3C5770
Darker −30%#2A3D4F
Darker −40%#18232E
More saturated +25%#488BCB
Less saturated −25%#838990

Channel breakdown

R101
G138
B173
Red101 (39.6%)
Green138 (54.1%)
Blue173 (67.8%)
Hue209.17°
Saturation (HSL)30.51%
Lightness53.73%
Dominant channelBlue
Hex per channelR 65 · G 8A · B AD

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Every value on this page was computed from “658aad” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.