Recognised as Colour

#551A0F

#551A0F
Red
Dark
Nearest: Saddle brown

#551A0F is a red with RGB values 85, 26, 15 and HSL 9°, 70%, 20%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Saddle brown.

Colour values

#551A0F#551A0F

HEX#551A0F

RGBrgb(85, 26, 15)

RGB (0–1)0.3333, 0.102, 0.0588

RGB percentages33.3%, 10.2%, 5.9%

HSLhsl(9.4, 70%, 19.6%)

HSV / HSBhsv(9.4, 82.4%, 33.3%)

CMYK0%, 69.4%, 82.4%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,577,231

CSS custom property--colour: #551A0F;

Brightness & contrast

Relative luminance0.02705WCAG 2.x, 0 is black and 1 is white

Perceived brightness50.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.63:1

Contrast with white13.63:1WCAG normal text: AAA

Contrast with black1.54:1WCAG normal text: Fail

Greyscale equivalent#262626

Inverted#AAE5F0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2B260Dno red cones; affects about 1% of men; ΔE 29.2 from the original

Deuteranopia#39330Dno green cones; the most common form, about 1% of men; ΔE 29.7 from the original

Tritanopia#5E0B18no blue cones; rare, and affects men and women equally; ΔE 11 from the original

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

Contrast with white, large text13.63:1WCAG large text: AAA

Contrast with black, large text1.54:1WCAG large text: Fail

Named colours

Saddle brown · ΔE 26.8 Maroon · ΔE 27.7 Sienna · ΔE 28.7 Brown · ΔE 30.9 Dark red · ΔE 32.6 Firebrick · ΔE 39

Nearest named CSS colourSaddle brown (#8B4513)ΔE 26.84, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0F4A55

Analogous#550F27, #553D0F

Triadic#0F551A, #1A0F55

Split complementary#0F553D, #0F2755

Tetradic#27550F, #0F4A55, #3D0F55

Tints, shades & saturation

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

Lighter +40%#E06750

Lighter +30%#D74226

Lighter +20%#AC351E

Lighter +10%#802717

Darker −10%#2A0D07

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#621103

Less saturated −25%#49231C

Channel breakdown

R85

G26

B15

Red85 (33.3%)

Green26 (10.2%)

Blue15 (5.9%)

Hue9.43°

Saturation (HSL)70%

Lightness19.61%

Dominant channelRed

Hex per channelR 55 · G 1A · B 0F

Keep nerding

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

#551A0F

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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