Lifeguard `#E50000`

Lifeguard (#E50000) is a mid-tone, vivid red with an OKLCH hue of 29°, lightness 0.58 and chroma 0.238. It sits on the warm side of the color wheel. In practice it behaves as an accent color: strong in focal moments, dominant over large fields.

Color values

HEX	`#E50000`
RGB	`rgb(229, 0, 0)`
HSL	`hsl(0, 100%, 45%)`
HSV	`hsv(0, 100%, 90%)`
CMYK	`cmyk(0%, 100%, 100%, 10%)`
CIE Lab	`lab(47.8 73.8 62)`
OKLCH	`oklch(0.579 0.238 29)`

How Lifeguard behaves under real light

Under warm 2700K interior light Lifeguard is virtually unchanged; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 0.6), so it is a lighting-stable choice.

Warm interior (2700K incandescent / warm LED): → #e50000 — ΔE 0.0, is virtually unchanged
Neutral LED (4000K task and retail lighting): → #e80000 — ΔE 0.6, is virtually unchanged
Daylight (6500K standard daylight (reference)): → #e50000 — ΔE 0.0, is virtually unchanged
Blue-sky shade (cool daylight (~10000K proxy)): → #e60201 — ΔE 0.2, is virtually unchanged

Test Lifeguard in the color lighting simulator — sweep it through daylight, warm 2700K light, 4000K LED, and shade alongside the rest of your palette.

Contrast & accessibility

Against white it measures 4.85:1 and against black 4.33:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text.

Colors that go with Lifeguard

Tonal

One color explored: close hues with real lightness and chroma structure, so the palette is the anchor through value rather than a set of colors.

#ffbeb4 · #ff7c6b · #e50000 · #b60000 · #7a0000 · #430000

Analogous

The anchor's neighbours on the wheel — everything shares an undertone, so the chord carries color without anything having to be muted to get along.

#e48200 · #e15e00 · #e50000 · #c20045 · #a00059 · #7e0062

Shifted

The mid-gap pairing — sage and mustard, terracotta and olive. A foil rotated 40–65° toward warm or cool: too far to be kin, too near to argue, carried by temperature and a deliberate value offset.

#ebaa00 · #bd9035 · #e50000 · #b20000 · #810000 · #372500

Contrast

One deliberately opposed voice — a single restrained counterpoint across the wheel, or temperature against temperature where the anchor is too muted to carry a loud opposite.

#00dcf5 · #c38b82 · #e50000 · #96362c · #6e1a13 · #410b07

Quiet Support

The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.

#d9f9fe · #b08a84 · #e50000 · #4f6468 · #3f1b17 · #000304

Bright Accent

This color as a ground rather than a subject — its own restraint held across a narrow value band, carrying one saturated voice from the opposite temperature.

#e6f5f7 · #bccdd0 · #8ea1a5 · #0f2a2e · #00070a · #e50000

Complementary

The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.

#d7f9ff · #00a8bb · #e50000 · #006d7a · #002e34 · #080000

Split-complementary

The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.

#d7f9ff · #00ad97 · #e50000 · #006798 · #003028 · #000611

Triadic

Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.

#d4ffda · #00b34e · #e50000 · #3144e3 · #10007f · #000200

Tetradic

Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.

#ecf9c4 · #8ba100 · #e50000 · #006d7a · #350064 · #000304

Tints, shades & muted variants

Tints

#F24839 · #FE6D5B · #FF9383 · #FFB5A9 · #FFD4CD

Shades

#BF0000 · #9A0000 · #760000 · #550000 · #350000

Muted

#D23E30 · #BD5548 · #A7665C

Using Lifeguard

Its chroma is high enough to carry accents, calls to action, and focal moments; large fields of it will dominate a composition. In palettes it pairs most predictably with its tonal ramp and analogous neighbors; reserve the complementary hue for small, deliberate contrast.