Colour

#0065CB

#0065CB
Blue
Dark
Nearest: Royal blue

#0065CB is a blue with RGB values 0, 101, 203 and HSL 210°, 100%, 40%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#0065CB#0065CB

HEX#0065CB

RGBrgb(0, 101, 203)

RGB (0–1)0, 0.3961, 0.7961

RGB percentages0%, 39.6%, 79.6%

HSLhsl(210.1, 100%, 39.8%)

HSV / HSBhsv(210.1, 100%, 79.6%)

CMYK100%, 50.2%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer26,059

CSS custom property--colour: #0065CB;

Brightness & contrast

Relative luminance0.13619WCAG 2.x, 0 is black and 1 is white

Perceived brightness103.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.64:1

Contrast with white5.64:1WCAG normal text: AA

Contrast with black3.72:1WCAG normal text: Fail

Greyscale equivalent#575757

Inverted#FF9A34

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2070CFno red cones; affects about 1% of men; ΔE 6.7 from the original

Deuteranopia#0060C9no green cones; the most common form, about 1% of men; ΔE 3.2 from the original

Tritanopia#007E8Eno blue cones; rare, and affects men and women equally; ΔE 57.6 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text5.64:1WCAG large text: AAA

Contrast with black, large text3.72:1WCAG large text: AA

Named colours

Royal blue · ΔE 12.9 Dodgerblue · ΔE 17.1 Slate blue · ΔE 20.7 Cornflower blue · ΔE 21.8 Dark slateblue · ΔE 24.1 Medium purple · ΔE 25.9

Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.87, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CB6600

Analogous#00CACB, #0100CB

Triadic#CB0065, #65CB00

Split complementary#CB0100, #CACB00

Tetradic#CB00CB, #CB6600, #00CB01

Tints, shades & saturation

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

Lighter +40%#98CBFF

Lighter +30%#65B2FF

Lighter +20%#3298FF

Lighter +10%#007EFE

Darker −10%#004C98

Darker −20%#003265

Darker −30%#001932

Darker −40%#000000

More saturated +25%#0065CB

Less saturated −25%#1965B2

Channel breakdown

G101

B203

Red0 (0%)

Green101 (39.6%)

Blue203 (79.6%)

Hue210.15°

Saturation (HSL)100%

Lightness39.8%

Dominant channelBlue

Hex per channelR 00 · G 65 · B CB

Keep nerding

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

#0065CB

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