Colour

#2533B9

#2533B9
Blue
Dark
Nearest: Dark blue

#2533B9 is a blue with RGB values 37, 51, 185 and HSL 234°, 67%, 44%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#2533B9#2533B9

HEX#2533B9

RGBrgb(37, 51, 185)

RGB (0–1)0.1451, 0.2, 0.7255

RGB percentages14.5%, 20%, 72.5%

HSLhsl(234.3, 66.7%, 43.5%)

HSV / HSBhsv(234.3, 80%, 72.5%)

CMYK80%, 72.4%, 0%, 27.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,438,073

CSS custom property--colour: #2533B9;

Brightness & contrast

Relative luminance0.06264WCAG 2.x, 0 is black and 1 is white

Perceived brightness76.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.32:1

Contrast with white9.32:1WCAG normal text: AAA

Contrast with black2.25:1WCAG normal text: Fail

Greyscale equivalent#3A3A3A

Inverted#DACC46

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#004EBDno red cones; affects about 1% of men; ΔE 20.3 from the original

Deuteranopia#003FB7no green cones; the most common form, about 1% of men; ΔE 11 from the original

Tritanopia#005973no blue cones; rare, and affects men and women equally; ΔE 74.9 from the original

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

Contrast with white, large text9.32:1WCAG large text: AAA

Contrast with black, large text2.25:1WCAG large text: Fail

Named colours

Dark blue · ΔE 17.3 Navy · ΔE 18.9 Slate blue · ΔE 21.5 Indigo · ΔE 22.2 Medium slateblue · ΔE 22.9 Rebecca purple · ΔE 24.2

Nearest named CSS colourDark blue (#00008B)ΔE 17.26, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B9AB25

Analogous#257DB9, #6125B9

Triadic#B92533, #33B925

Split complementary#B96125, #7DB925

Tetradic#B9257D, #B9AB25, #25B961

Tints, shades & saturation

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

Lighter +40%#B9BEF1

Lighter +30%#8F97E9

Lighter +20%#6470E0

Lighter +10%#3A48D7

Darker −10%#1D278F

Darker −20%#141C64

Darker −30%#0C103A

Darker −40%#03040F

More saturated +25%#091CD5

Less saturated −25%#41499D

Channel breakdown

R37

G51

B185

Red37 (14.5%)

Green51 (20%)

Blue185 (72.5%)

Hue234.32°

Saturation (HSL)66.67%

Lightness43.53%

Dominant channelBlue

Hex per channelR 25 · G 33 · B B9

Keep nerding

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

#2533B9

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