Colour

#04173D

#04173D
Blue
Dark
Nearest: Black

#04173D is a blue with RGB values 4, 23, 61 and HSL 220°, 88%, 13%. It is a dark colour, so white text on it reaches 17.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#04173D#04173D

HEX#04173D

RGBrgb(4, 23, 61)

RGB (0–1)0.0157, 0.0902, 0.2392

RGB percentages1.6%, 9%, 23.9%

HSLhsl(220, 87.7%, 12.7%)

HSV / HSBhsv(220, 93.4%, 23.9%)

CMYK93.4%, 62.3%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer268,093

CSS custom property--colour: #04173D;

Brightness & contrast

Relative luminance0.00976WCAG 2.x, 0 is black and 1 is white

Perceived brightness27.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.57:1

Contrast with white17.57:1WCAG normal text: AAA

Contrast with black1.2:1WCAG normal text: Fail

Greyscale equivalent#161616

Inverted#FBE8C2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#001C3Eno red cones; affects about 1% of men; ΔE 4.9 from the original

Deuteranopia#00173Cno green cones; the most common form, about 1% of men; ΔE 1.2 from the original

Tritanopia#002027no blue cones; rare, and affects men and women equally; ΔE 26.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.57:1WCAG large text: AAA

Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Black · ΔE 29.6 Dark slateblue · ΔE 31.6 Midnight blue · ΔE 32.7 Dark slate grey · ΔE 38.5 Dim grey · ΔE 45.5 Rebecca purple · ΔE 46

Nearest named CSS colourBlack (#000000)ΔE 29.61, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3D2A04

Analogous#04343D, #0E043D

Triadic#3D0417, #173D04

Split complementary#3D0D04, #343D04

Tetradic#3D0433, #3D2A04, #043D0D

Tints, shades & saturation

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

Lighter +40%#1D63F0

Lighter +30%#0D4DCD

Lighter +20%#0A3B9D

Lighter +10%#07296D

Darker −10%#01050D

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001641

Less saturated −25%#0C1A35

Channel breakdown

G23

B61

Red4 (1.6%)

Green23 (9%)

Blue61 (23.9%)

Hue220°

Saturation (HSL)87.69%

Lightness12.75%

Dominant channelBlue

Hex per channelR 04 · G 17 · B 3D

Keep nerding

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

#04173D

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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