Colour

#6397CB

#6397CB
Blue
Dark
Nearest: Steel blue

#6397CB is a blue with RGB values 99, 151, 203 and HSL 210°, 50%, 59%. It is a dark colour, so black text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#6397CB#6397CB

HEX#6397CB

RGBrgb(99, 151, 203)

RGB (0–1)0.3882, 0.5922, 0.7961

RGB percentages38.8%, 59.2%, 79.6%

HSLhsl(210, 50%, 59.2%)

HSV / HSBhsv(210, 51.2%, 79.6%)

CMYK51.2%, 25.6%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,526,923

CSS custom property--colour: #6397CB;

Brightness & contrast

Relative luminance0.29098WCAG 2.x, 0 is black and 1 is white

Perceived brightness145 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.82:1

Contrast with white3.08:1WCAG normal text: Fail

Contrast with black6.82:1WCAG normal text: AA

Greyscale equivalent#909090

Inverted#9C6834

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8299CDno red cones; affects about 1% of men; ΔE 8.2 from the original

Deuteranopia#748ECAno green cones; the most common form, about 1% of men; ΔE 9.4 from the original

Tritanopia#2DA3A9no blue cones; rare, and affects men and women equally; ΔE 33.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.08:1WCAG large text: AA

Contrast with black, large text6.82:1WCAG large text: AAA

Named colours

Steel blue · ΔE 8.5 Light skyblue · ΔE 20.8 Cornflower blue · ΔE 21 Light slate grey · ΔE 21.5 Deep skyblue · ΔE 21.7 Slate grey · ΔE 22.9

Nearest named CSS colourSteel blue (#4682B4)ΔE 8.52, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CB9763

Analogous#63CBCB, #6363CB

Triadic#CB6397, #97CB63

Split complementary#CB6363, #CBCB63

Tetradic#CB63CB, #CB9763, #63CB63

Tints, shades & saturation

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

Lighter +40%#FCFDFE

Lighter +30%#D6E4F1

Lighter +20%#B0CAE5

Lighter +10%#89B1D8

Darker −10%#3F7EBC

Darker −20%#326496

Darker −30%#254B70

Darker −40%#19314A

More saturated +25%#4997E5

Less saturated −25%#7D97B1

Channel breakdown

R99

G151

B203

Red99 (38.8%)

Green151 (59.2%)

Blue203 (79.6%)

Hue210°

Saturation (HSL)50%

Lightness59.22%

Dominant channelBlue

Hex per channelR 63 · G 97 · B CB

Keep nerding

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

#6397CB

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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