Colour

#00153D

#00153D
Blue
Dark
Nearest: Black

#00153D is a blue with RGB values 0, 21, 61 and HSL 219°, 100%, 12%. It is a dark colour, so white text on it reaches 17.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#00153D#00153D

HEX#00153D

RGBrgb(0, 21, 61)

RGB (0–1)0, 0.0824, 0.2392

RGB percentages0%, 8.2%, 23.9%

HSLhsl(219.3, 100%, 12%)

HSV / HSBhsv(219.3, 100%, 23.9%)

CMYK100%, 65.6%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,437

CSS custom property--colour: #00153D;

Brightness & contrast

Relative luminance0.00873WCAG 2.x, 0 is black and 1 is white

Perceived brightness26.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.88:1

Contrast with white17.88:1WCAG normal text: AAA

Contrast with black1.17:1WCAG normal text: Fail

Greyscale equivalent#131313

Inverted#FFEAC2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001A3Eno red cones; affects about 1% of men; ΔE 4.6 from the original

Deuteranopia#00153Cno green cones; the most common form, about 1% of men; ΔE 0.8 from the original

Tritanopia#001F26no blue cones; rare, and affects men and women equally; ΔE 27.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.88:1WCAG large text: AAA

Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Black · ΔE 31 Dark slateblue · ΔE 31.1 Midnight blue · ΔE 31.2 Dark slate grey · ΔE 40.4 Rebecca purple · ΔE 45.2 Steel blue · ΔE 47.1

Nearest named CSS colourBlack (#000000)ΔE 31, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3D2800

Analogous#00333D, #0A003D

Triadic#3D0015, #153D00

Split complementary#3D0A00, #333D00

Tetradic#3D0033, #3D2800, #003D0A

Tints, shades & saturation

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

Lighter +40%#0A5EFF

Lighter +30%#004AD6

Lighter +20%#0038A3

Lighter +10%#002770

Darker −10%#00030A

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00153D

Less saturated −25%#081735

Channel breakdown

G21

B61

Red0 (0%)

Green21 (8.2%)

Blue61 (23.9%)

Hue219.34°

Saturation (HSL)100%

Lightness11.96%

Dominant channelBlue

Hex per channelR 00 · G 15 · B 3D

Keep nerding

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#00153D

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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