Colour

#00275E

#00275E
Blue
Dark
Nearest: Dark slateblue

#00275E is a blue with RGB values 0, 39, 94 and HSL 215°, 100%, 18%. It is a dark colour, so white text on it reaches 14.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00275E#00275E

HEX#00275E

RGBrgb(0, 39, 94)

RGB (0–1)0, 0.1529, 0.3686

RGB percentages0%, 15.3%, 36.9%

HSLhsl(215.1, 100%, 18.4%)

HSV / HSBhsv(215.1, 100%, 36.9%)

CMYK100%, 58.5%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer10,078

CSS custom property--colour: #00275E;

Brightness & contrast

Relative luminance0.02259WCAG 2.x, 0 is black and 1 is white

Perceived brightness43.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.46:1

Contrast with white14.46:1WCAG normal text: AAA

Contrast with black1.45:1WCAG normal text: Fail

Greyscale equivalent#232323

Inverted#FFD8A1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002E60no red cones; affects about 1% of men; ΔE 5.6 from the original

Deuteranopia#00265Dno green cones; the most common form, about 1% of men; ΔE 0.5 from the original

Tritanopia#00353Eno blue cones; rare, and affects men and women equally; ΔE 35.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text14.46:1WCAG large text: AAA

Contrast with black, large text1.45:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.6 Midnight blue · ΔE 23.7 Rebecca purple · ΔE 36.4 Steel blue · ΔE 39.4 Black · ΔE 41.7 Dark slate grey · ΔE 42.8

Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.65, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#5E3700

Analogous#00565E, #08005E

Triadic#5E0027, #275E00

Split complementary#5E0800, #565E00

Tetradic#5E0056, #5E3700, #005E08

Tints, shades & saturation

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

Lighter +40%#2B83FF

Lighter +30%#0066F7

Lighter +20%#0051C4

Lighter +10%#003C91

Darker −10%#00122B

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00275E

Less saturated −25%#0C2952

Channel breakdown

G39

B94

Red0 (0%)

Green39 (15.3%)

Blue94 (36.9%)

Hue215.11°

Saturation (HSL)100%

Lightness18.43%

Dominant channelBlue

Hex per channelR 00 · G 27 · B 5E

Keep nerding

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#00275E

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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