Colour

#001F23

#001F23
Cyan
Dark
Nearest: Black

#001F23 is a cyan with RGB values 0, 31, 35 and HSL 187°, 100%, 7%. It is a dark colour, so white text on it reaches 17.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#001F23#001F23

HEX#001F23

RGBrgb(0, 31, 35)

RGB (0–1)0, 0.1216, 0.1373

RGB percentages0%, 12.2%, 13.7%

HSLhsl(186.9, 100%, 6.9%)

HSV / HSBhsv(186.9, 100%, 13.7%)

CMYK100%, 11.4%, 0%, 86.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer7,971

CSS custom property--colour: #001F23;

Brightness & contrast

Relative luminance0.01101WCAG 2.x, 0 is black and 1 is white

Perceived brightness26.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.21:1

Contrast with white17.21:1WCAG normal text: AAA

Contrast with black1.22:1WCAG normal text: Fail

Greyscale equivalent#191919

Inverted#FFE0DC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1B1D23no red cones; affects about 1% of men; ΔE 10.7 from the original

Deuteranopia#161923no green cones; the most common form, about 1% of men; ΔE 11.5 from the original

Tritanopia#002120no blue cones; rare, and affects men and women equally; ΔE 4.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.21:1WCAG large text: AAA

Contrast with black, large text1.22:1WCAG large text: Fail

Named colours

Black · ΔE 15.1 Dark slate grey · ΔE 21.7 Dim grey · ΔE 36.5 Teal · ΔE 43 Slate grey · ΔE 43.9 Gray · ΔE 45.3

Nearest named CSS colourBlack (#000000)ΔE 15.13, a distinctly different colour

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#230400

Analogous#002316, #000D23

Triadic#23001F, #1F2300

Split complementary#23000D, #231600

Tetradic#160023, #230400, #0D2300

Tints, shades & saturation

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

Lighter +40%#00D4EF

Lighter +30%#00A7BC

Lighter +20%#007989

Lighter +10%#004C56

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001F23

Less saturated −25%#041C1F

Channel breakdown

G31

B35

Red0 (0%)

Green31 (12.2%)

Blue35 (13.7%)

Hue186.86°

Saturation (HSL)100%

Lightness6.86%

Dominant channelBlue

Hex per channelR 00 · G 1F · B 23

Keep nerding

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

#001F23

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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