Colour

#01040F

#01040F
Blue
Dark
Nearest: Black

#01040F is a blue with RGB values 1, 4, 15 and HSL 227°, 88%, 3%. It is a dark colour, so white text on it reaches 20.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#01040F#01040F

HEX#01040F

RGBrgb(1, 4, 15)

RGB (0–1)0.0039, 0.0157, 0.0588

RGB percentages0.4%, 1.6%, 5.9%

HSLhsl(227.1, 87.5%, 3.1%)

HSV / HSBhsv(227.1, 93.3%, 5.9%)

CMYK93.3%, 73.3%, 0%, 94.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer66,575

CSS custom property--colour: #01040F;

Brightness & contrast

Relative luminance0.00128WCAG 2.x, 0 is black and 1 is white

Perceived brightness5.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 20.48:1

Contrast with white20.48:1WCAG normal text: AAA

Contrast with black1.03:1WCAG normal text: Fail

Greyscale equivalent#040404

Inverted#FEFBF0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#01050Fno red cones; affects about 1% of men; ΔE 0.5 from the original

Deuteranopia#00040Fno green cones; the most common form, about 1% of men; ΔE 0.3 from the original

Tritanopia#000608no blue cones; rare, and affects men and women equally; ΔE 4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text20.48:1WCAG large text: AAA

Contrast with black, large text1.03:1WCAG large text: Fail

Named colours

Black · ΔE 4.9 Dark slate grey · ΔE 32.6 Dim grey · ΔE 43.5 Slate grey · ΔE 52.1 Gray · ΔE 52.6 Dark slateblue · ΔE 54

Nearest named CSS colourBlack (#000000)ΔE 4.93, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0F0C01

Analogous#010B0F, #05010F

Triadic#0F0104, #040F01

Split complementary#0F0501, #0B0F01

Tetradic#0F010B, #0F0C01, #010F05

Tints, shades & saturation

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

Lighter +40%#0E37CE

Lighter +30%#0B2A9E

Lighter +20%#071E6F

Lighter +10%#04113F

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#000310

Less saturated −25%#03050D

Channel breakdown

B15

Red1 (0.4%)

Green4 (1.6%)

Blue15 (5.9%)

Hue227.14°

Saturation (HSL)87.5%

Lightness3.14%

Dominant channelBlue

Hex per channelR 01 · G 04 · B 0F

Keep nerding

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

#01040F

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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