Recognised as Colour

#1D00A3

#1D00A3
Blue
Dark
Nearest: Dark blue

#1D00A3 is a blue with RGB values 29, 0, 163 and HSL 251°, 100%, 32%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#1D00A3#1D00A3

HEX#1D00A3

RGBrgb(29, 0, 163)

RGB (0–1)0.1137, 0, 0.6392

RGB percentages11.4%, 0%, 63.9%

HSLhsl(250.7, 100%, 32%)

HSV / HSBhsv(250.7, 100%, 63.9%)

CMYK82.2%, 100%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,900,707

CSS custom property--colour: #1D00A3;

Brightness & contrast

Relative luminance0.02906WCAG 2.x, 0 is black and 1 is white

Perceived brightness57.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.28:1

Contrast with white13.28:1WCAG normal text: AAA

Contrast with black1.58:1WCAG normal text: Fail

Greyscale equivalent#121212

Inverted#E2FF5C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0037A7no red cones; affects about 1% of men; ΔE 29.1 from the original

Deuteranopia#0028A1no green cones; the most common form, about 1% of men; ΔE 20.2 from the original

Tritanopia#00415Eno blue cones; rare, and affects men and women equally; ΔE 82.9 from the original

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

Contrast with white, large text13.28:1WCAG large text: AAA

Contrast with black, large text1.58:1WCAG large text: Fail

Named colours

Dark blue · ΔE 10.6 Navy · ΔE 15.7 Medium blue · ΔE 19.8 Indigo · ΔE 22.6 Blue violet · ΔE 25.9 Dark violet · ΔE 28.2

Nearest named CSS colourDark blue (#00008B)ΔE 10.56, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#86A300

Analogous#0034A3, #6F00A3

Triadic#A31D00, #00A31D

Split complementary#A36F00, #34A300

Tetradic#A30034, #86A300, #00A36F

Tints, shades & saturation

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

Lighter +40%#8970FF

Lighter +30%#603DFF

Lighter +20%#360AFF

Lighter +10%#2600D6

Darker −10%#140070

Darker −20%#0B003D

Darker −30%#02000A

Darker −40%#000000

More saturated +25%#1D00A3

Less saturated −25%#2A148F

Channel breakdown

R29

B163

Red29 (11.4%)

Green0 (0%)

Blue163 (63.9%)

Hue250.67°

Saturation (HSL)100%

Lightness31.96%

Dominant channelBlue

Hex per channelR 1D · G 00 · B A3

Keep nerding

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

#1D00A3

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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