Recognised as Colour

#0A191B

#0A191B
Cyan
Dark
Nearest: Black

#0A191B is a cyan with RGB values 10, 25, 27 and HSL 187°, 46%, 7%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#0A191B#0A191B

HEX#0A191B

RGBrgb(10, 25, 27)

RGB (0–1)0.0392, 0.098, 0.1059

RGB percentages3.9%, 9.8%, 10.6%

HSLhsl(187.1, 45.9%, 7.3%)

HSV / HSBhsv(187.1, 63%, 10.6%)

CMYK63%, 7.4%, 0%, 89.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer661,787

CSS custom property--colour: #0A191B;

Brightness & contrast

Relative luminance0.00839WCAG 2.x, 0 is black and 1 is white

Perceived brightness21.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.98:1

Contrast with white17.98:1WCAG normal text: AAA

Contrast with black1.17:1WCAG normal text: Fail

Greyscale equivalent#161616

Inverted#F5E6E4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#17181Bno red cones; affects about 1% of men; ΔE 5.7 from the original

Deuteranopia#14161Bno green cones; the most common form, about 1% of men; ΔE 5.7 from the original

Tritanopia#041A1Ano blue cones; rare, and affects men and women equally; ΔE 2.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.98:1WCAG large text: AAA

Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Black · ΔE 9.8 Dark slate grey · ΔE 24.6 Dim grey · ΔE 37.4 Slate grey · ΔE 45.9 Gray · ΔE 46.4 Teal · ΔE 47.3

Nearest named CSS colourBlack (#000000)ΔE 9.79, clearly different but related

Hue familycyan

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1B0C0A

Analogous#0A1B14, #0A111B

Triadic#1B0A19, #191B0A

Split complementary#1B0A11, #1B140A

Tetradic#140A1B, #1B0C0A, #101B0A

Tints, shades & saturation

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

Lighter +40%#41A3B0

Lighter +30%#33808B

Lighter +20%#265E65

Lighter +10%#183B40

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#051D20

Less saturated −25%#0F1516

Channel breakdown

R10

G25

B27

Red10 (3.9%)

Green25 (9.8%)

Blue27 (10.6%)

Hue187.06°

Saturation (HSL)45.95%

Lightness7.25%

Dominant channelBlue

Hex per channelR 0A · G 19 · B 1B

Keep nerding

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

#0A191B

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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