Colour

#1B002F

#1B002F
Violet
Dark
Nearest: Midnight blue

#1B002F is a violet with RGB values 27, 0, 47 and HSL 274°, 100%, 9%. It is a dark colour, so white text on it reaches 19.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1B002F#1B002F

HEX#1B002F

RGBrgb(27, 0, 47)

RGB (0–1)0.1059, 0, 0.1843

RGB percentages10.6%, 0%, 18.4%

HSLhsl(274.5, 100%, 9.2%)

HSV / HSBhsv(274.5, 100%, 18.4%)

CMYK42.6%, 100%, 0%, 81.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,769,519

CSS custom property--colour: #1B002F;

Brightness & contrast

Relative luminance0.00438WCAG 2.x, 0 is black and 1 is white

Perceived brightness21.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.31:1

Contrast with white19.31:1WCAG normal text: AAA

Contrast with black1.09:1WCAG normal text: Fail

Greyscale equivalent#090909

Inverted#E4FFD0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#000D30no red cones; affects about 1% of men; ΔE 14 from the original

Deuteranopia#000E2Eno green cones; the most common form, about 1% of men; ΔE 15.6 from the original

Tritanopia#170B17no blue cones; rare, and affects men and women equally; ΔE 24.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text19.31:1WCAG large text: AAA

Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 29.7 Dark slateblue · ΔE 32.6 Black · ΔE 33 Rebecca purple · ΔE 42.4 Indigo · ΔE 44.7 Purple · ΔE 46.6

Nearest named CSS colourMidnight blue (#191970)ΔE 29.69, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#142F00

Analogous#03002F, #2F002C

Triadic#2F1B00, #002F1B

Split complementary#2C2F00, #002F03

Tetradic#2F0300, #142F00, #002C2F

Tints, shades & saturation

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

Lighter +40%#9000FB

Lighter +30%#7300C8

Lighter +20%#560095

Lighter +10%#380062

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1B002F

Less saturated −25%#1A0629

Channel breakdown

R27

B47

Red27 (10.6%)

Green0 (0%)

Blue47 (18.4%)

Hue274.47°

Saturation (HSL)100%

Lightness9.22%

Dominant channelBlue

Hex per channelR 1B · G 00 · B 2F

Keep nerding

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#1B002F

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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