Colour

#001F43

#001F43
Blue
Dark
Nearest: Black

#001F43 is a blue with RGB values 0, 31, 67 and HSL 212°, 100%, 13%. It is a dark colour, so white text on it reaches 16.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#001F43#001F43

HEX#001F43

RGBrgb(0, 31, 67)

RGB (0–1)0, 0.1216, 0.2627

RGB percentages0%, 12.2%, 26.3%

HSLhsl(212.2, 100%, 13.1%)

HSV / HSBhsv(212.2, 100%, 26.3%)

CMYK100%, 53.7%, 0%, 73.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer8,003

CSS custom property--colour: #001F43;

Brightness & contrast

Relative luminance0.01385WCAG 2.x, 0 is black and 1 is white

Perceived brightness32.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.44:1

Contrast with white16.44:1WCAG normal text: AAA

Contrast with black1.28:1WCAG normal text: Fail

Greyscale equivalent#1B1B1B

Inverted#FFE0BC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0A2244no red cones; affects about 1% of men; ΔE 2.4 from the original

Deuteranopia#001C42no green cones; the most common form, about 1% of men; ΔE 2.5 from the original

Tritanopia#00282Dno blue cones; rare, and affects men and women equally; ΔE 25.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.44:1WCAG large text: AAA

Contrast with black, large text1.28:1WCAG large text: Fail

Named colours

Black · ΔE 29 Dark slateblue · ΔE 32.4 Dark slate grey · ΔE 34.1 Midnight blue · ΔE 35.6 Dim grey · ΔE 41.9 Steel blue · ΔE 42.2

Nearest named CSS colourBlack (#000000)ΔE 28.99, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#432400

Analogous#004143, #020043

Triadic#43001F, #1F4300

Split complementary#430200, #414300

Tetradic#430041, #432400, #004302

Tints, shades & saturation

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

Lighter +40%#107FFF

Lighter +30%#0066DC

Lighter +20%#004EA9

Lighter +10%#003776

Darker −10%#000710

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001F43

Less saturated −25%#08203B

Channel breakdown

G31

B67

Red0 (0%)

Green31 (12.2%)

Blue67 (26.3%)

Hue212.24°

Saturation (HSL)100%

Lightness13.14%

Dominant channelBlue

Hex per channelR 00 · G 1F · B 43

Keep nerding

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#001F43

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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