Colour

#180A23

#180A23
Violet
Dark
Nearest: Black

#180A23 is a violet with RGB values 24, 10, 35 and HSL 274°, 56%, 9%. It is a dark colour, so white text on it reaches 19:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#180A23#180A23

HEX#180A23

RGBrgb(24, 10, 35)

RGB (0–1)0.0941, 0.0392, 0.1373

RGB percentages9.4%, 3.9%, 13.7%

HSLhsl(273.6, 55.6%, 8.8%)

HSV / HSBhsv(273.6, 71.4%, 13.7%)

CMYK31.4%, 71.4%, 0%, 86.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,575,459

CSS custom property--colour: #180A23;

Brightness & contrast

Relative luminance0.00533WCAG 2.x, 0 is black and 1 is white

Perceived brightness19.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.98:1

Contrast with white18.98:1WCAG normal text: AAA

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

Greyscale equivalent#0F0F0F

Inverted#E7F5DC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#041024no red cones; affects about 1% of men; ΔE 9.3 from the original

Deuteranopia#071122no green cones; the most common form, about 1% of men; ΔE 9.9 from the original

Tritanopia#160F15no blue cones; rare, and affects men and women equally; ΔE 13.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.98:1WCAG large text: AAA

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

Named colours

Black · ΔE 18.5 Dark slate grey · ΔE 36.6 Dark slateblue · ΔE 41.2 Midnight blue · ΔE 42.7 Dim grey · ΔE 43.4 Slate grey · ΔE 50

Nearest named CSS colourBlack (#000000)ΔE 18.5, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#15230A

Analogous#0B0A23, #230A22

Triadic#23180A, #0A2318

Split complementary#22230A, #0A230B

Tetradic#230B0A, #15230A, #0A2223

Tints, shades & saturation

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

Lighter +40%#8537C2

Lighter +30%#6A2C9A

Lighter +20%#4E2172

Lighter +10%#33154B

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#190429

Less saturated −25%#17101D

Channel breakdown

R24

G10

B35

Red24 (9.4%)

Green10 (3.9%)

Blue35 (13.7%)

Hue273.6°

Saturation (HSL)55.56%

Lightness8.82%

Dominant channelBlue

Hex per channelR 18 · G 0A · B 23

Keep nerding

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

#180A23

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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