Red Coral `#FF4040`

Red Coral (#FF4040) is a mid-tone, vivid red with an OKLCH hue of 26°, lightness 0.66 and chroma 0.227. 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	`#FF4040`
RGB	`rgb(255, 64, 64)`
HSL	`hsl(0, 100%, 63%)`
HSV	`hsv(0, 75%, 100%)`
CMYK	`cmyk(0%, 75%, 75%, 0%)`
CIE Lab	`lab(57.4 70.5 44.8)`
OKLCH	`oklch(0.660 0.227 26)`

How Red Coral behaves under real light

Under warm 2700K interior light Red Coral is virtually unchanged; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 0.9), so it is a lighting-stable choice.

Warm interior (2700K incandescent / warm LED): → #ff3939 — ΔE 0.9, is virtually unchanged
Neutral LED (4000K task and retail lighting): → #ff3e3e — ΔE 0.3, is virtually unchanged
Daylight (6500K standard daylight (reference)): → #ff4040 — ΔE 0.0, is virtually unchanged
Blue-sky shade (cool daylight (~10000K proxy)): → #ff4141 — ΔE 0.1, is virtually unchanged

Test Red Coral 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 3.47:1 and against black 6.06:1, so black text is the stronger pairing. That pairing passes WCAG AA for body text.

Colors that go with Red Coral

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.

#ffe4e1 · #ffa8a0 · #ff4040 · #d92028 · #a00012 · #660007

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.

#ff9c46 · #ff763b · #ff4040 · #df3063 · #bc2976 · #97267f

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.

#d8a858 · #ff4040 · #cd3131 · #755000 · #78000a · #332000

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.

#00ddf1 · #ff4040 · #95625d · #8a302c · #631313 · #370505

Quiet Support

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

#daf8fc · #ff4040 · #906d69 · #384c4e · #32110f · #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 · #bccdcf · #8ea1a4 · #0f2a2d · #000709 · #ff4040

Complementary

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

#d4faff · #ff4040 · #008794 · #00525a · #002226 · #080000

Split-complementary

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

#d4faff · #ff4040 · #008b75 · #004e70 · #00241c · #00040c

Triadic

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

#d5ffd7 · #ff4040 · #00902d · #1229bf · #040065 · #000200

Tetradic

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

#eff8c4 · #ff4040 · #748000 · #00525a · #260050 · #000304

Tints, shades & muted variants

Tints

#FF6C63 · #FF8C82 · #FFA89F · #FFC2BB · #FFDAD6

Shades

#D8282D · #B20819 · #89000E · #600006 · #3B0002

Muted

#EB5C55 · #D67067 · #BF7E78

Using Red Coral

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.