Colour

#281A1D

#281A1D
Red
Dark
Nearest: Black

#281A1D is a red with RGB values 40, 26, 29 and HSL 347°, 21%, 13%. It is a dark colour, so white text on it reaches 16.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#281A1D#281A1D

HEX#281A1D

RGBrgb(40, 26, 29)

RGB (0–1)0.1569, 0.102, 0.1137

RGB percentages15.7%, 10.2%, 11.4%

HSLhsl(347.1, 21.2%, 12.9%)

HSV / HSBhsv(347.1, 35%, 15.7%)

CMYK0%, 35%, 27.5%, 84.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,628,125

CSS custom property--colour: #281A1D;

Brightness & contrast

Relative luminance0.01279WCAG 2.x, 0 is black and 1 is white

Perceived brightness31.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.72:1

Contrast with white16.72:1WCAG normal text: AAA

Contrast with black1.26:1WCAG normal text: Fail

Greyscale equivalent#1D1D1D

Inverted#D7E5E2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1C1C1Dno red cones; affects about 1% of men; ΔE 7.5 from the original

Deuteranopia#1F1F1Dno green cones; the most common form, about 1% of men; ΔE 8.1 from the original

Tritanopia#2A191Bno blue cones; rare, and affects men and women equally; ΔE 1.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.72:1WCAG large text: AAA

Contrast with black, large text1.26:1WCAG large text: Fail

Named colours

Black · ΔE 13.5 Dark slate grey · ΔE 28.2 Dim grey · ΔE 34.1 Gray · ΔE 43.1 Slate grey · ΔE 44.3 Light slate grey · ΔE 47.3

Nearest named CSS colourBlack (#000000)ΔE 13.46, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1A2825

Analogous#281A24, #281E1A

Triadic#1D281A, #1A1D28

Split complementary#1A281E, #1A2428

Tetradic#24281A, #1A2825, #1E1A28

Tints, shades & saturation

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

Lighter +40%#A06E78

Lighter +30%#855660

Lighter +20%#66424A

Lighter +10%#472E33

Darker −10%#090607

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#301218

Less saturated −25%#212121

Channel breakdown

R40

G26

B29

Red40 (15.7%)

Green26 (10.2%)

Blue29 (11.4%)

Hue347.14°

Saturation (HSL)21.21%

Lightness12.94%

Dominant channelRed

Hex per channelR 28 · G 1A · B 1D

Keep nerding

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

#281A1D

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

Nerdulate something else