Colour

#003377

#003377
Blue
Dark
Nearest: Dark slateblue

#003377 is a blue with RGB values 0, 51, 119 and HSL 214°, 100%, 23%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003377#003377

HEX#003377

HEX (short)#037

RGBrgb(0, 51, 119)

RGB (0–1)0, 0.2, 0.4667

RGB percentages0%, 20%, 46.7%

HSLhsl(214.3, 100%, 23.3%)

HSV / HSBhsv(214.3, 100%, 46.7%)

CMYK100%, 57.1%, 0%, 53.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,175

CSS custom property--colour: #003377;

Brightness & contrast

Relative luminance0.037WCAG 2.x, 0 is black and 1 is white

Perceived brightness56 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.07:1

Contrast with white12.07:1WCAG normal text: AAA

Contrast with black1.74:1WCAG normal text: Fail

Greyscale equivalent#2D2D2D

Inverted#FFCC88

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003B79no red cones; affects about 1% of men; ΔE 6.3 from the original

Deuteranopia#003176no green cones; the most common form, about 1% of men; ΔE 1.3 from the original

Tritanopia#00444Fno blue cones; rare, and affects men and women equally; ΔE 42.5 from the original

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

Contrast with white, large text12.07:1WCAG large text: AAA

Contrast with black, large text1.74:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.2 Midnight blue · ΔE 19.7 Rebecca purple · ΔE 30.5 Slate blue · ΔE 34.6 Royal blue · ΔE 35.6 Steel blue · ΔE 36.7

Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.22, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#774400

Analogous#006F77, #080077

Triadic#770033, #337700

Split complementary#770800, #6E7700

Tetradic#77006F, #774400, #007708

Tints, shades & saturation

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

Lighter +40%#4494FF

Lighter +30%#1177FF

Lighter +20%#005FDD

Lighter +10%#0049AA

Darker −10%#001D44

Darker −20%#000711

Darker −30%#000000

Darker −40%#000000

More saturated +25%#003377

Less saturated −25%#0F3568

Channel breakdown

G51

B119

Red0 (0%)

Green51 (20%)

Blue119 (46.7%)

Hue214.29°

Saturation (HSL)100%

Lightness23.33%

Dominant channelBlue

Hex per channelR 00 · G 33 · B 77

Keep nerding

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

#003377

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