Recognised as Colour

#660A04

#660A04
Red
Dark
Nearest: Maroon

#660A04 is a red with RGB values 102, 10, 4 and HSL 4°, 92%, 21%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Maroon.

Colour values

#660A04#660A04

HEX#660A04

RGBrgb(102, 10, 4)

RGB (0–1)0.4, 0.0392, 0.0157

RGB percentages40%, 3.9%, 1.6%

HSLhsl(3.7, 92.5%, 20.8%)

HSV / HSBhsv(3.7, 96.1%, 40%)

CMYK0%, 90.2%, 96.1%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,687,236

CSS custom property--colour: #660A04;

Brightness & contrast

Relative luminance0.03051WCAG 2.x, 0 is black and 1 is white

Perceived brightness56.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.04:1

Contrast with white13.04:1WCAG normal text: AAA

Contrast with black1.61:1WCAG normal text: Fail

Greyscale equivalent#1D1D1D

Inverted#99F5FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2A2402no red cones; affects about 1% of men; ΔE 41.9 from the original

Deuteranopia#403800no green cones; the most common form, about 1% of men; ΔE 41.7 from the original

Tritanopia#71000Ano blue cones; rare, and affects men and women equally; ΔE 6 from the original

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

Contrast with white, large text13.04:1WCAG large text: AAA

Contrast with black, large text1.61:1WCAG large text: Fail

Named colours

Maroon · ΔE 14.2 Dark red · ΔE 19.2 Brown · ΔE 20.7 Saddle brown · ΔE 24.1 Sienna · ΔE 26.1 Firebrick · ΔE 27.1

Nearest named CSS colourMaroon (#800000)ΔE 14.18, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#046066

Analogous#66042F, #663B04

Triadic#04660A, #0A0466

Split complementary#04663B, #042F66

Tetradic#2F6604, #046066, #3B0466

Tints, shades & saturation

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

Lighter +40%#F74A3F

Lighter +30%#F61C0D

Lighter +20%#C81408

Lighter +10%#970F06

Darker −10%#350502

Darker −20%#040000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#6A0600

Less saturated −25%#591611

Channel breakdown

R102

G10

Red102 (40%)

Green10 (3.9%)

Blue4 (1.6%)

Hue3.67°

Saturation (HSL)92.45%

Lightness20.78%

Dominant channelRed

Hex per channelR 66 · G 0A · B 04

Keep nerding

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

#660A04

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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