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Recognised as Colour

#8599CB

  • #8599CB
  • Blue
  • Dark
  • Nearest: Steel blue

#8599CB is a blue with RGB values 133, 153, 203 and HSL 223°, 40%, 66%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#8599CB#8599CB
HEX#8599CB
RGBrgb(133, 153, 203)
RGB (0–1)0.5216, 0.6, 0.7961
RGB percentages52.2%, 60%, 79.6%
HSLhsl(222.9, 40.2%, 65.9%)
HSV / HSBhsv(222.9, 34.5%, 79.6%)
CMYK34.5%, 24.6%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,755,659
CSS custom property--colour: #8599CB;

Brightness & contrast

Relative luminance0.32081WCAG 2.x, 0 is black and 1 is white
Perceived brightness154 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.42:1
Contrast with white2.83:1WCAG normal text: Fail
Contrast with black7.42:1WCAG normal text: AAA
Greyscale equivalent#989898
Inverted#7A6634

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#899DCDno red cones; affects about 1% of men; ΔE 1.9 from the original
Deuteranopia#8297CAno green cones; the most common form, about 1% of men; ΔE 1 from the original
Tritanopia#70A3AAno blue cones; rare, and affects men and women equally; ΔE 27.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.83:1WCAG large text: Fail
Contrast with black, large text7.42:1WCAG large text: AAA

Named colours

Steel blue · ΔE 14.8Light slate grey · ΔE 19.8Light steelblue · ΔE 20.7Slate grey · ΔE 21.6Cornflower blue · ΔE 21.8Light skyblue · ΔE 22.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 14.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CBB785
Analogous#85BCCB, #9485CB
Triadic#CB8599, #99CB85
Split complementary#CB9485, #BCCB85
Tetradic#CB85BC, #CBB785, #85CB94

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#F0F3F9
Lighter +20%#CDD5E9
Lighter +10%#A9B7DA
Darker −10%#617BBC
Darker −20%#4661A4
Darker −30%#374C80
Darker −40%#27375D
More saturated +25%#6F90E1
Less saturated −25%#9BA2B5

Channel breakdown

R133
G153
B203
Red133 (52.2%)
Green153 (60%)
Blue203 (79.6%)
Hue222.86°
Saturation (HSL)40.23%
Lightness65.88%
Dominant channelBlue
Hex per channelR 85 · G 99 · B CB

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Every value on this page was computed from “8599cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.