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Recognised as Colour

#669BC0

  • #669BC0
  • Blue
  • Dark
  • Nearest: Steel blue

#669BC0 is a blue with RGB values 102, 155, 192 and HSL 205°, 42%, 58%. It is a dark colour, so black text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#669BC0#669BC0
HEX#669BC0
RGBrgb(102, 155, 192)
RGB (0–1)0.4, 0.6078, 0.7529
RGB percentages40%, 60.8%, 75.3%
HSLhsl(204.7, 41.7%, 57.6%)
HSV / HSBhsv(204.7, 46.9%, 75.3%)
CMYK46.9%, 19.3%, 0%, 24.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,724,544
CSS custom property--colour: #669BC0;

Brightness & contrast

Relative luminance0.30073WCAG 2.x, 0 is black and 1 is white
Perceived brightness146.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.01:1
Contrast with white2.99:1WCAG normal text: Fail
Contrast with black7.01:1WCAG normal text: AAA
Greyscale equivalent#929292
Inverted#99643F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8B9AC2no red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#7F91BFno green cones; the most common form, about 1% of men; ΔE 12.3 from the original
Tritanopia#3EA4A7no blue cones; rare, and affects men and women equally; ΔE 25 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.99:1WCAG large text: Fail
Contrast with black, large text7.01:1WCAG large text: AAA

Named colours

Steel blue · ΔE 12.5Light slate grey · ΔE 15.6Slate grey · ΔE 17.4Light skyblue · ΔE 18.7Sky blue · ΔE 19.3Light steelblue · ΔE 20.1
Nearest named CSS colourSteel blue (#4682B4)ΔE 12.46, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C08B66
Analogous#66C0B8, #666EC0
Triadic#C0669B, #9BC066
Split complementary#C0666E, #C0B866
Tetradic#B866C0, #C08B66, #6EC066

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F7F9FC
Lighter +30%#D2E2ED
Lighter +20%#AECADE
Lighter +10%#8AB3CF
Darker −10%#4782AC
Darker −20%#386788
Darker −30%#294C64
Darker −40%#1A3040
More saturated +25%#4BA0DB
Less saturated −25%#8196A5

Channel breakdown

R102
G155
B192
Red102 (40%)
Green155 (60.8%)
Blue192 (75.3%)
Hue204.67°
Saturation (HSL)41.67%
Lightness57.65%
Dominant channelBlue
Hex per channelR 66 · G 9B · B C0

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Every value on this page was computed from “669bc0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.