Blood Donor
Also known as: Silken Ruby , Irritated Ibis , Red Pigment , Bethlehem Red
Part of the red family, Blood Donor pairs a medium base with a passionate and urgent presence. It belongs in food branding and sale banners. Because it leans warm, balancing it with a cyan keeps a palette from feeling one-note. On white it reads clearly at 4.51:1 contrast, safe for body text under WCAG AA.
Reference
Blood Donor color codes
- HEX
- #EA1822
- RGB
- rgb(234, 24, 34)
- RGBA
- rgba(234, 24, 34, 1)
- HSL
- hsl(357, 83%, 51%)
- HSV
- hsv(357, 90%, 92%)
- CMYK
- cmyk(0%, 90%, 85%, 8%)
- LAB
- lab(50.8 73.8 53.8)
- OKLCH
- oklch(59.6% 0.234 27.0)
Analysis
Color intelligence
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Gamut
The full range of colors a device or space can show. sRGB is the common screen gamut; Display P3 is wider. A color outside a gamut cannot be shown accurately there and must be mapped inward.Full glossary entry →Displays accurately on every screen. Vivid colors like this typically lose some intensity in CMYK print. Request a physical proof for brand-critical work.
Temperature
Undertone
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warm
Nearest standard colors
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →- CSS: red #FF0000 · ΔE 5.9
- RAL 3028: Pure red #E72512 · ΔE 3.6 · approximate
RAL values are widely published approximations of the physical standard. For Pantone-adjacent workflows, match by eye against a physical fan deck. Pantone's values are proprietary and device-dependent, so we don't print lookups.
Where Blood Donor works
- Web & UI: Dark enough for body text and icons on white backgrounds. It passes WCAG AA as-is.
- Interiors: Strong for a whole room, excellent in doses: an accent wall, cabinetry, or a statement chair.
- Fashion: Wears best as the statement piece, a top, scarf, or shoes, against neutral basics.
- Branding: High-energy brand material: strong for food, fitness, and youth-facing marks. Use sparingly in UI.
- Web & UI: Best as a button fill, badge, or accent. Pair it with white text only at large sizes, and check contrast.
- Branding: A secondary brand color by nature: it supports a stronger primary and shines in illustration.
Copy as: every ecosystem
Variations
Tints, shades, and tones of Blood Donor
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →Tints (lighter)
Shades (darker)
Harmonies
Color harmonies
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →Palettes built from Blood Donor by rotating its hue in OKLCH space. Click any swatch to copy its hex code.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Monochromatic
Accessibility
Contrast & accessibility
Aa on white
contrast 4.51:1
AA pass AAA fail AA large pass
Aa on black
contrast 4.65:1
AA pass AAA fail AA large pass
Best text color on a Blood Donor background: #000000
Palettes
Palettes featuring Blood Donor
Blood Donor with its complement
Soft neighbors of Blood Donor
Blood Donor triad
Explore
Similar colors
- Ferocious #E2261F · ΔE 1.8
- Devilish #DD3322 · ΔE 2.9
- Mario #E4000F · ΔE 3.1
- Stoplight #DD1111 · ΔE 3.8
- Transfusion #EA1833 · ΔE 3.9
- Incision #FF0022 · ΔE 3.9
Looking for maximum contrast instead? The complement of Blood Donor is closest to Oasis .
FAQ
Blood Donor FAQs
What color is Blood Donor?
Blood Donor is a medium red with the hex code #EA1822. In HSL terms it has a hue of 357°, 83% saturation, and 51% lightness.
What is the hex code for Blood Donor?
The hex code for Blood Donor is #EA1822. In RGB it's rgb(234, 24, 34), and in CMYK it's cmyk(0%, 90%, 85%, 8%).
What colors go well with Blood Donor?
Blood Donor pairs naturally with cyan tones from its complementary harmony. Its own tints and shades always work as a monochrome scheme.
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