Colour

#04181F

#04181F
Cyan
Dark
Nearest: Black

#04181F is a cyan with RGB values 4, 24, 31 and HSL 196°, 77%, 7%. It is a dark colour, so white text on it reaches 18.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#04181F#04181F

HEX#04181F

RGBrgb(4, 24, 31)

RGB (0–1)0.0157, 0.0941, 0.1216

RGB percentages1.6%, 9.4%, 12.2%

HSLhsl(195.6, 77.1%, 6.9%)

HSV / HSBhsv(195.6, 87.1%, 12.2%)

CMYK87.1%, 22.6%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer268,319

CSS custom property--colour: #04181F;

Brightness & contrast

Relative luminance0.00778WCAG 2.x, 0 is black and 1 is white

Perceived brightness21.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.17:1

Contrast with white18.17:1WCAG normal text: AAA

Contrast with black1.16:1WCAG normal text: Fail

Greyscale equivalent#141414

Inverted#FBE7E0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#14171Fno red cones; affects about 1% of men; ΔE 5.9 from the original

Deuteranopia#10141Fno green cones; the most common form, about 1% of men; ΔE 6.3 from the original

Tritanopia#001A1Ano blue cones; rare, and affects men and women equally; ΔE 6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.17:1WCAG large text: AAA

Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 11.2 Dark slate grey · ΔE 25.5 Dim grey · ΔE 38.4 Slate grey · ΔE 46 Gray · ΔE 47.4 Teal · ΔE 47.8

Nearest named CSS colourBlack (#000000)ΔE 11.18, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F0B04

Analogous#041F18, #040B1F

Triadic#1F0418, #181F04

Split complementary#1F040B, #1F1804

Tetradic#18041F, #1F0B04, #0B1F04

Tints, shades & saturation

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

Lighter +40%#1BA4D4

Lighter +30%#1581A7

Lighter +20%#105E79

Lighter +10%#0A3B4C

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001A23

Less saturated −25%#08161B

Channel breakdown

G24

B31

Red4 (1.6%)

Green24 (9.4%)

Blue31 (12.2%)

Hue195.56°

Saturation (HSL)77.14%

Lightness6.86%

Dominant channelBlue

Hex per channelR 04 · G 18 · B 1F

Keep nerding

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

#04181F

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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