Colour

#51454B

#51454B
Red
Dark
Nearest: Dim grey

#51454B is a red with RGB values 81, 69, 75 and HSL 330°, 8%, 29%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dim grey.

Colour values

#51454B#51454B

HEX#51454B

RGBrgb(81, 69, 75)

RGB (0–1)0.3176, 0.2706, 0.2941

RGB percentages31.8%, 27.1%, 29.4%

HSLhsl(330, 8%, 29.4%)

HSV / HSBhsv(330, 14.8%, 31.8%)

CMYK0%, 14.8%, 7.4%, 68.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,326,155

CSS custom property--colour: #51454B;

Brightness & contrast

Relative luminance0.06514WCAG 2.x, 0 is black and 1 is white

Perceived brightness73.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.12:1

Contrast with white9.12:1WCAG normal text: AAA

Contrast with black2.3:1WCAG normal text: Fail

Greyscale equivalent#484848

Inverted#AEBAB4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#46474Bno red cones; affects about 1% of men; ΔE 5.9 from the original

Deuteranopia#48494Bno green cones; the most common form, about 1% of men; ΔE 6.3 from the original

Tritanopia#534547no blue cones; rare, and affects men and women equally; ΔE 2.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text9.12:1WCAG large text: AAA

Contrast with black, large text2.3:1WCAG large text: Fail

Named colours

Dim grey · ΔE 15.2 Dark slate grey · ΔE 18.1 Gray · ΔE 23.8 Slate grey · ΔE 25.3 Light slate grey · ΔE 28.3 Black · ΔE 31.4

Nearest named CSS colourDim grey (#696969)ΔE 15.21, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#45514B

Analogous#514551, #514545

Triadic#4B5145, #454B51

Split complementary#455145, #455151

Tetradic#515145, #45514B, #454551

Tints, shades & saturation

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

Lighter +40%#B7ABB1

Lighter +30%#A08F98

Lighter +20%#88747E

Lighter +10%#6D5C64

Darker −10%#352E31

Darker −20%#1A1618

Darker −30%#000000

Darker −40%#000000

More saturated +25%#64324B

Less saturated −25%#4B4B4B

Channel breakdown

R81

G69

B75

Red81 (31.8%)

Green69 (27.1%)

Blue75 (29.4%)

Hue330°

Saturation (HSL)8%

Lightness29.41%

Dominant channelRed

Hex per channelR 51 · G 45 · B 4B

Keep nerding

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

#51454B

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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