Colour

#00377E

#00377E
Blue
Dark
Nearest: Dark slateblue

#00377E is a blue with RGB values 0, 55, 126 and HSL 214°, 100%, 25%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00377E#00377E

HEX#00377E

RGBrgb(0, 55, 126)

RGB (0–1)0, 0.2157, 0.4941

RGB percentages0%, 21.6%, 49.4%

HSLhsl(213.8, 100%, 24.7%)

HSV / HSBhsv(213.8, 100%, 49.4%)

CMYK100%, 56.3%, 0%, 50.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,206

CSS custom property--colour: #00377E;

Brightness & contrast

Relative luminance0.04239WCAG 2.x, 0 is black and 1 is white

Perceived brightness59.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.37:1

Contrast with white11.37:1WCAG normal text: AAA

Contrast with black1.85:1WCAG normal text: Fail

Greyscale equivalent#303030

Inverted#FFC881

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#004080no red cones; affects about 1% of men; ΔE 7.2 from the original

Deuteranopia#00357Dno green cones; the most common form, about 1% of men; ΔE 1.3 from the original

Tritanopia#004955no blue cones; rare, and affects men and women equally; ΔE 43.5 from the original

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

Contrast with white, large text11.37:1WCAG large text: AAA

Contrast with black, large text1.85:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 13.3 Midnight blue · ΔE 19.8 Rebecca purple · ΔE 29.6 Slate blue · ΔE 32.7 Royal blue · ΔE 33.4 Steel blue · ΔE 35.9

Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.3, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7E4700

Analogous#00767E, #08007E

Triadic#7E0037, #377E00

Split complementary#7E0800, #767E00

Tetradic#7E0076, #7E4700, #007E08

Tints, shades & saturation

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

Lighter +40%#4B9AFF

Lighter +30%#187DFF

Lighter +20%#0064E4

Lighter +10%#004DB1

Darker −10%#00214B

Darker −20%#000A18

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00377E

Less saturated −25%#10396E

Channel breakdown

G55

B126

Red0 (0%)

Green55 (21.6%)

Blue126 (49.4%)

Hue213.81°

Saturation (HSL)100%

Lightness24.71%

Dominant channelBlue

Hex per channelR 00 · G 37 · B 7E

Keep nerding

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

#00377E

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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