Recognised as Colour

#51150F

#51150F
Red
Dark
Nearest: Maroon

#51150F is a red with RGB values 81, 21, 15 and HSL 5°, 69%, 19%. It is a dark colour, so white text on it reaches 14.3:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#51150F#51150F

HEX#51150F

RGBrgb(81, 21, 15)

RGB (0–1)0.3176, 0.0824, 0.0588

RGB percentages31.8%, 8.2%, 5.9%

HSLhsl(5.5, 68.7%, 18.8%)

HSV / HSBhsv(5.5, 81.5%, 31.8%)

CMYK0%, 74.1%, 81.5%, 68.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,313,807

CSS custom property--colour: #51150F;

Brightness & contrast

Relative luminance0.0232WCAG 2.x, 0 is black and 1 is white

Perceived brightness47.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.34:1

Contrast with white14.34:1WCAG normal text: AAA

Contrast with black1.46:1WCAG normal text: Fail

Greyscale equivalent#212121

Inverted#AEEAF0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#26220Eno red cones; affects about 1% of men; ΔE 30.1 from the original

Deuteranopia#352F0Dno green cones; the most common form, about 1% of men; ΔE 30.1 from the original

Tritanopia#5A0414no blue cones; rare, and affects men and women equally; ΔE 9.7 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text14.34:1WCAG large text: AAA

Contrast with black, large text1.46:1WCAG large text: Fail

Named colours

Maroon · ΔE 29 Saddle brown · ΔE 29.7 Sienna · ΔE 31.3 Brown · ΔE 32.1 Dark red · ΔE 33.9 Black · ΔE 37.8

Nearest named CSS colourMaroon (#800000)ΔE 28.95, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0F4B51

Analogous#510F2A, #51360F

Triadic#0F5115, #150F51

Split complementary#0F5136, #0F2A51

Tetradic#2A510F, #0F4B51, #360F51

Tints, shades & saturation

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

Lighter +40%#DE5B4E

Lighter +30%#D23627

Lighter +20%#A72B1F

Lighter +10%#7C2017

Darker −10%#260A07

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#5D0B03

Less saturated −25%#451F1B

Channel breakdown

R81

G21

B15

Red81 (31.8%)

Green21 (8.2%)

Blue15 (5.9%)

Hue5.45°

Saturation (HSL)68.75%

Lightness18.82%

Dominant channelRed

Hex per channelR 51 · G 15 · B 0F

Keep nerding

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

#51150F

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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