Colour

#6389CC

#6389CC
Blue
Dark
Nearest: Cornflower blue

#6389CC is a blue with RGB values 99, 137, 204 and HSL 218°, 51%, 59%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#6389CC#6389CC

HEX#6389CC

RGBrgb(99, 137, 204)

RGB (0–1)0.3882, 0.5373, 0.8

RGB percentages38.8%, 53.7%, 80%

HSLhsl(218.3, 50.7%, 59.4%)

HSV / HSBhsv(218.3, 51.5%, 80%)

CMYK51.5%, 32.8%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,523,340

CSS custom property--colour: #6389CC;

Brightness & contrast

Relative luminance0.24904WCAG 2.x, 0 is black and 1 is white

Perceived brightness136.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.98:1

Contrast with white3.51:1WCAG normal text: Fail

Contrast with black5.98:1WCAG normal text: AA

Greyscale equivalent#868686

Inverted#9C7633

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6F8ECFno red cones; affects about 1% of men; ΔE 3 from the original

Deuteranopia#6384CBno green cones; the most common form, about 1% of men; ΔE 3.5 from the original

Tritanopia#3098A1no blue cones; rare, and affects men and women equally; ΔE 40.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.51:1WCAG large text: AA

Contrast with black, large text5.98:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.2 Steel blue · ΔE 12.6 Dodgerblue · ΔE 25.2 Deep skyblue · ΔE 28.4 Light slate grey · ΔE 28.7 Slate grey · ΔE 29.5

Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.24, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CCA663

Analogous#63BECC, #7163CC

Triadic#CC6389, #89CC63

Split complementary#CC7163, #BECC63

Tetradic#CC63BE, #CCA663, #63CC71

Tints, shades & saturation

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

Lighter +40%#FDFDFE

Lighter +30%#D6E0F2

Lighter +20%#B0C3E5

Lighter +10%#89A6D9

Darker −10%#3E6CBE

Darker −20%#325697

Darker −30%#254071

Darker −40%#182B4B

More saturated +25%#4982E6

Less saturated −25%#7D90B2

Channel breakdown

R99

G137

B204

Red99 (38.8%)

Green137 (53.7%)

Blue204 (80%)

Hue218.29°

Saturation (HSL)50.72%

Lightness59.41%

Dominant channelBlue

Hex per channelR 63 · G 89 · B CC

Keep nerding

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

#6389CC

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

Nerdulate something else