Recognised as Colour

#01031F

#01031F
Blue
Dark
Nearest: Black

#01031F is a blue with RGB values 1, 3, 31 and HSL 236°, 94%, 6%. It is a dark colour, so white text on it reaches 20.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#01031F#01031F

HEX#01031F

RGBrgb(1, 3, 31)

RGB (0–1)0.0039, 0.0118, 0.1216

RGB percentages0.4%, 1.2%, 12.2%

HSLhsl(236, 93.8%, 6.3%)

HSV / HSBhsv(236, 96.8%, 12.2%)

CMYK96.8%, 90.3%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer66,335

CSS custom property--colour: #01031F;

Brightness & contrast

Relative luminance0.00171WCAG 2.x, 0 is black and 1 is white

Perceived brightness10.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 20.31:1

Contrast with white20.31:1WCAG normal text: AAA

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

Greyscale equivalent#050505

Inverted#FEFCE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#000720no red cones; affects about 1% of men; ΔE 1.7 from the original

Deuteranopia#00041Eno green cones; the most common form, about 1% of men; ΔE 1.4 from the original

Tritanopia#00090Fno blue cones; rare, and affects men and women equally; ΔE 14 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text20.31:1WCAG large text: AAA

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

Named colours

Black · ΔE 16.6 Dark slate grey · ΔE 36.3 Dark slateblue · ΔE 44.6 Midnight blue · ΔE 45.3 Dim grey · ΔE 45.9 Slate grey · ΔE 52.1

Nearest named CSS colourBlack (#000000)ΔE 16.59, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F1D01

Analogous#01121F, #0E011F

Triadic#1F0103, #031F01

Split complementary#1F0E01, #121F01

Tetradic#1F0112, #1F1D01, #011F0E

Tints, shades & saturation

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

Lighter +40%#0716E5

Lighter +30%#0611B3

Lighter +20%#040D82

Lighter +10%#030850

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#000220

Less saturated −25%#05061B

Channel breakdown

B31

Red1 (0.4%)

Green3 (1.2%)

Blue31 (12.2%)

Hue236°

Saturation (HSL)93.75%

Lightness6.27%

Dominant channelBlue

Hex per channelR 01 · G 03 · B 1F

Keep nerding

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

#01031F

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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