Colour

#170B0C

#170B0C
Red
Dark
Nearest: Black

#170B0C is a red with RGB values 23, 11, 12 and HSL 355°, 35%, 7%. It is a dark colour, so white text on it reaches 19.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#170B0C#170B0C

HEX#170B0C

RGBrgb(23, 11, 12)

RGB (0–1)0.0902, 0.0431, 0.0471

RGB percentages9%, 4.3%, 4.7%

HSLhsl(355, 35.3%, 6.7%)

HSV / HSBhsv(355, 52.2%, 9%)

CMYK0%, 52.2%, 47.8%, 91%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,510,156

CSS custom property--colour: #170B0C;

Brightness & contrast

Relative luminance0.00448WCAG 2.x, 0 is black and 1 is white

Perceived brightness15.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.27:1

Contrast with white19.27:1WCAG normal text: AAA

Contrast with black1.09:1WCAG normal text: Fail

Greyscale equivalent#0E0E0E

Inverted#E8F4F3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0D0D0Cno red cones; affects about 1% of men; ΔE 4.9 from the original

Deuteranopia#100F0Cno green cones; the most common form, about 1% of men; ΔE 4.8 from the original

Tritanopia#190A0Bno blue cones; rare, and affects men and women equally; ΔE 1.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text19.27:1WCAG large text: AAA

Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Black · ΔE 6.3 Dark slate grey · ΔE 32.1 Dim grey · ΔE 40.6 Gray · ΔE 49.8 Slate grey · ΔE 50.6 Dark olivegreen · ΔE 53.6

Nearest named CSS colourBlack (#000000)ΔE 6.28, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0B1716

Analogous#170B12, #17100B

Triadic#0C170B, #0B0C17

Split complementary#0B1710, #0B1217

Tetradic#12170B, #0B1716, #100B17

Tints, shades & saturation

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

Lighter +40%#A14D54

Lighter +30%#7F3C42

Lighter +20%#5C2C30

Lighter +10%#3A1C1E

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1B0708

Less saturated −25%#130F10

Channel breakdown

R23

G11

B12

Red23 (9%)

Green11 (4.3%)

Blue12 (4.7%)

Hue355°

Saturation (HSL)35.29%

Lightness6.67%

Dominant channelRed

Hex per channelR 17 · G 0B · B 0C

Keep nerding

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

#170B0C

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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