Blood Red
Blood Red is a highly saturated, near pure red shade with RGB(102, 0, 0) and hex code #660000, reading as dark at a glance.
HEX
#660000
RGB
102, 0, 0
HSL
0°, 100%, 20%
CMYK
0%, 100%, 100%, 60%
LAB
19, 41, 30
Quick copy
Description
- •Blood Red (#660000) is a warm-toned red color defined by RGB values of 102, 0, 0 and HSL values of 0 degrees hue, 100% saturation, and 20% lightness. At 20% lightness it appears dark, and its highly saturated, near pure character makes it suitable as a strong accent or brand color. It pairs naturally with its complementary shade #006666 for high-contrast schemes, or with the analogous tones #663300 and #660033 for a more harmonious palette.
Psychology
As a red shade, Blood Red tends to carry the general associations of that hue family: power, passion, danger, and urgency. Red is one of the first colors humans evolved to distinguish and is commonly linked with energy, urgency, and appetite.
Hue family
red
Saturation level
highly saturated, near pure
Lightness level
dark
Temperature
warm
Because Blood Red is highly saturated, near pure and dark, it tends to feel calm and unobtrusive in a design context.
Meaning
Within the red family, colors like Blood Red are commonly associated with power, passion, danger, and urgency, though exact interpretation depends on cultural context and surrounding design elements.
Hue family
red
Common associations
power, passion, danger, and urgency
Temperature
warm
History
- 1Blood Red is a named point in a modern digital color palette rather than a documented historical pigment, but the red family it belongs to has a long design history. Red is one of the first colors humans evolved to distinguish and is commonly linked with energy, urgency, and appetite.
Color info
Quick actions
Visual perception
- At HSL(0, 100%, 20%), Blood Red has a relative luminance of about 0.03 on a 0-1 scale, which can make it harder to distinguish for people with red-green color blindness if used alongside similarly saturated greens or reds; pair it with a distinct lightness or add non-color cues such as icons or labels.
Technology specific
- Blood Red (#660000) renders consistently on standard sRGB displays; on wider-gamut or uncalibrated screens, expect minor shifts in perceived saturation. For print reproduction, convert from RGB to CMYK and proof physically, since highly saturated colors like this can shift noticeably between screen and print.
Guidance
Use Blood Red with white text for readability (contrast ratio approximately 13.4:1). Reserve it for smaller accent areas rather than large backgrounds since high saturation can overwhelm at scale.
Examples
web design
call-to-action buttons
branding
logo accent color
UI design
alert or highlight states
spot color for emphasis
Purpose
Blood Red works well for backgrounds, body text, or supporting UI surfaces where subtlety matters, given its highly saturated, near pure and dark profile.
Benefits
visual contrast
pairs with white text for a WCAG contrast ratio of about 13.4:1
palette flexibility
combines with #006666 (complementary) and #006600/#000066 (triadic) for varied schemes
brand consistency
reads as bold and energetic across most screens