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Recognised as Colour

#659BBB

  • #659BBB
  • Blue
  • Dark
  • Nearest: Light slate grey

#659BBB is a blue with RGB values 101, 155, 187 and HSL 202°, 39%, 56%. It is a dark colour, so black text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Light slate grey.

Colour values

#659BBB#659BBB
HEX#659BBB
RGBrgb(101, 155, 187)
RGB (0–1)0.3961, 0.6078, 0.7333
RGB percentages39.6%, 60.8%, 73.3%
HSLhsl(202.3, 38.7%, 56.5%)
HSV / HSBhsv(202.3, 46%, 73.3%)
CMYK46%, 17.1%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,659,003
CSS custom property--colour: #659BBB;

Brightness & contrast

Relative luminance0.29797WCAG 2.x, 0 is black and 1 is white
Perceived brightness145.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.96:1
Contrast with white3.02:1WCAG normal text: Fail
Contrast with black6.96:1WCAG normal text: AA
Greyscale equivalent#929292
Inverted#9A6444

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8C9ABDno red cones; affects about 1% of men; ΔE 12.5 from the original
Deuteranopia#8090BBno green cones; the most common form, about 1% of men; ΔE 13.9 from the original
Tritanopia#3FA3A5no blue cones; rare, and affects men and women equally; ΔE 22.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.02:1WCAG large text: AA
Contrast with black, large text6.96:1WCAG large text: AAA

Named colours

Light slate grey · ΔE 14.1Steel blue · ΔE 14.4Slate grey · ΔE 16Cadetblue · ΔE 18.1Sky blue · ΔE 18.6Light skyblue · ΔE 19.4
Nearest named CSS colourLight slate grey (#778899)ΔE 14.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BB8565
Analogous#65BBB0, #6570BB
Triadic#BB659B, #9BBB65
Split complementary#BB6570, #BBB065
Tetradic#B065BB, #BB8565, #70BB65

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F3F7F9
Lighter +30%#CFE0EA
Lighter +20%#ACC9DA
Lighter +10%#88B2CB
Darker −10%#4982A4
Darker −20%#396681
Darker −30%#294A5E
Darker −40%#1A2E3A
More saturated +25%#49A2D7
Less saturated −25%#81949F

Channel breakdown

R101
G155
B187
Red101 (39.6%)
Green155 (60.8%)
Blue187 (73.3%)
Hue202.33°
Saturation (HSL)38.74%
Lightness56.47%
Dominant channelBlue
Hex per channelR 65 · G 9B · B BB

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Every value on this page was computed from “659bbb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.