Colour

#688BC7

#688BC7
Blue
Dark
Nearest: Steel blue

#688BC7 is a blue with RGB values 104, 139, 199 and HSL 218°, 46%, 59%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#688BC7#688BC7

HEX#688BC7

RGBrgb(104, 139, 199)

RGB (0–1)0.4078, 0.5451, 0.7804

RGB percentages40.8%, 54.5%, 78%

HSLhsl(217.9, 45.9%, 59.4%)

HSV / HSBhsv(217.9, 47.7%, 78%)

CMYK47.7%, 30.2%, 0%, 22%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,851,527

CSS custom property--colour: #688BC7;

Brightness & contrast

Relative luminance0.25532WCAG 2.x, 0 is black and 1 is white

Perceived brightness138.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.11:1

Contrast with white3.44:1WCAG normal text: Fail

Contrast with black6.11:1WCAG normal text: AA

Greyscale equivalent#888888

Inverted#977438

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#748FCAno red cones; affects about 1% of men; ΔE 2.9 from the original

Deuteranopia#6A86C6no green cones; the most common form, about 1% of men; ΔE 3.7 from the original

Tritanopia#4098A0no blue cones; rare, and affects men and women equally; ΔE 36 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.44:1WCAG large text: AA

Contrast with black, large text6.11:1WCAG large text: AAA

Named colours

Steel blue · ΔE 10.1 Cornflower blue · ΔE 15.9 Light slate grey · ΔE 24.7 Slate grey · ΔE 25.6 Light skyblue · ΔE 27.5 Deep skyblue · ΔE 27.6

Nearest named CSS colourSteel blue (#4682B4)ΔE 10.12, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C7A468

Analogous#68BBC7, #7468C7

Triadic#C7688B, #8BC768

Split complementary#C77568, #BBC768

Tetradic#C768BB, #C7A468, #68C774

Tints, shades & saturation

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

Lighter +40%#FDFDFE

Lighter +30%#D8E1F0

Lighter +20%#B2C4E3

Lighter +10%#8DA8D5

Darker −10%#446FB8

Darker −20%#365893

Darker −30%#29426D

Darker −40%#1B2C48

More saturated +25%#4E84E1

Less saturated −25%#8292AD

Channel breakdown

R104

G139

B199

Red104 (40.8%)

Green139 (54.5%)

Blue199 (78%)

Hue217.89°

Saturation (HSL)45.89%

Lightness59.41%

Dominant channelBlue

Hex per channelR 68 · G 8B · B C7

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#688BC7

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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