Recognised as Colour

#040C37

#040C37
Blue
Dark
Nearest: Midnight blue

#040C37 is a blue with RGB values 4, 12, 55 and HSL 231°, 86%, 12%. It is a dark colour, so white text on it reaches 18.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#040C37#040C37

HEX#040C37

RGBrgb(4, 12, 55)

RGB (0–1)0.0157, 0.0471, 0.2157

RGB percentages1.6%, 4.7%, 21.6%

HSLhsl(230.6, 86.4%, 11.6%)

HSV / HSBhsv(230.6, 92.7%, 21.6%)

CMYK92.7%, 78.2%, 0%, 78.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer265,271

CSS custom property--colour: #040C37;

Brightness & contrast

Relative luminance0.00565WCAG 2.x, 0 is black and 1 is white

Perceived brightness20.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.87:1

Contrast with white18.87:1WCAG normal text: AAA

Contrast with black1.11:1WCAG normal text: Fail

Greyscale equivalent#0D0D0D

Inverted#FBF3C8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001438no red cones; affects about 1% of men; ΔE 6 from the original

Deuteranopia#000F36no green cones; the most common form, about 1% of men; ΔE 3.4 from the original

Tritanopia#001820no blue cones; rare, and affects men and women equally; ΔE 27.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.87:1WCAG large text: AAA

Contrast with black, large text1.11:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 29.9 Dark slateblue · ΔE 31.7 Black · ΔE 31.8 Dark slate grey · ΔE 44 Rebecca purple · ΔE 44.5 Indigo · ΔE 48

Nearest named CSS colourMidnight blue (#191970)ΔE 29.91, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#372F04

Analogous#042537, #160437

Triadic#37040C, #0C3704

Split complementary#371604, #253704

Tetradic#370425, #372F04, #043716

Tints, shades & saturation

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

Lighter +40%#193AEE

Lighter +30%#0E2BC6

Lighter +20%#0B2196

Lighter +10%#071667

Darker −10%#010207

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00093B

Less saturated −25%#0B1130

Channel breakdown

G12

B55

Red4 (1.6%)

Green12 (4.7%)

Blue55 (21.6%)

Hue230.59°

Saturation (HSL)86.44%

Lightness11.57%

Dominant channelBlue

Hex per channelR 04 · G 0C · B 37

Keep nerding

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

#040C37

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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