Colour

#6690BB

#6690BB
Blue
Dark
Nearest: Steel blue

#6690BB is a blue with RGB values 102, 144, 187 and HSL 210°, 38%, 57%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#6690BB#6690BB

HEX#6690BB

RGBrgb(102, 144, 187)

RGB (0–1)0.4, 0.5647, 0.7333

RGB percentages40%, 56.5%, 73.3%

HSLhsl(210.4, 38.5%, 56.7%)

HSV / HSBhsv(210.4, 45.5%, 73.3%)

CMYK45.5%, 23%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,721,723

CSS custom property--colour: #6690BB;

Brightness & contrast

Relative luminance0.26359WCAG 2.x, 0 is black and 1 is white

Perceived brightness138.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.27:1

Contrast with white3.35:1WCAG normal text: Fail

Contrast with black6.27:1WCAG normal text: AA

Greyscale equivalent#8A8A8A

Inverted#996F44

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7F91BDno red cones; affects about 1% of men; ΔE 7.4 from the original

Deuteranopia#7489BAno green cones; the most common form, about 1% of men; ΔE 7.7 from the original

Tritanopia#439A9Fno blue cones; rare, and affects men and women equally; ΔE 27.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.35:1WCAG large text: AA

Contrast with black, large text6.27:1WCAG large text: AAA

Named colours

Steel blue · ΔE 8.1 Light slate grey · ΔE 16 Slate grey · ΔE 17.2 Light skyblue · ΔE 22.9 Light steelblue · ΔE 23.3 Sky blue · ΔE 24.7

Nearest named CSS colourSteel blue (#4682B4)ΔE 8.05, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#BB9166

Analogous#66BABB, #6766BB

Triadic#BB6690, #90BB66

Split complementary#BB6766, #BABB66

Tetradic#BB66BB, #BB9166, #66BB67

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#F3F6FA

Lighter +30%#D0DDEA

Lighter +20%#ADC3DA

Lighter +10%#89AACB

Darker −10%#4976A5

Darker −20%#3A5D81

Darker −30%#2A445E

Darker −40%#1A2A3B

More saturated +25%#4A90D7

Less saturated −25%#82909F

Channel breakdown

R102

G144

B187

Red102 (40%)

Green144 (56.5%)

Blue187 (73.3%)

Hue210.35°

Saturation (HSL)38.46%

Lightness56.67%

Dominant channelBlue

Hex per channelR 66 · G 90 · B BB

Keep nerding

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#6690BB

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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