Coquelicot `#FF3800`

Coquelicot (#FF3800) is a mid-tone, vivid red with an OKLCH hue of 33°, lightness 0.65 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	`#FF3800`
RGB	`rgb(255, 56, 0)`
HSL	`hsl(13, 100%, 50%)`
HSV	`hsv(13, 100%, 100%)`
CMYK	`cmyk(0%, 78%, 100%, 0%)`
CIE Lab	`lab(56.2 71.7 68.3)`
OKLCH	`oklch(0.650 0.238 33)`

How Coquelicot behaves under real light

Under warm 2700K interior light Coquelicot is virtually unchanged; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 0.8), so it is a lighting-stable choice.

Warm interior (2700K incandescent / warm LED): → #ff3000 — ΔE 0.8, is virtually unchanged
Neutral LED (4000K task and retail lighting): → #ff3500 — ΔE 0.3, is virtually unchanged
Daylight (6500K standard daylight (reference)): → #ff3800 — ΔE 0.0, is virtually unchanged
Blue-sky shade (cool daylight (~10000K proxy)): → #ff3902 — ΔE 0.1, is virtually unchanged

Test Coquelicot 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 3.61:1 and against black 5.82:1, so black text is the stronger pairing. That pairing passes WCAG AA for body text.

Colors that go with Coquelicot

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.

#ffe0d8 · #ffa590 · #ff3800 · #d12b00 · #951b00 · #5d0b00

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.

#fd9900 · #fb7500 · #ff3800 · #e2214a · #c01764 · #9c1671

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.

#d0a84c · #ff3800 · #cd2a00 · #6c5000 · #6f1000 · #2d1f00

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.

#00dbfc · #ff3800 · #935f53 · #892c19 · #610d00 · #350200

Quiet Support

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

#daf8ff · #c7a098 · #ff3800 · #63797e · #49251d · #000305

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.

#e7f5f8 · #bccdd1 · #8ea1a6 · #0f292f · #00070b · #ff3800

Complementary

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

#d8e5c1 · #3fdac9 · #ff3800 · #9a668a · #354734 · #190f06

Split-complementary

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

#cfdcb8 · #6eabd8 · #ff3800 · #3f6a63 · #384638 · #190f04

Triadic

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

#d2ffde · #00cc6e · #ff3800 · #4f59fc · #1f0092 · #000601

Tetradic

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

#e8fbc6 · #95bc00 · #ff3800 · #008397 · #430072 · #000305

Tints, shades & muted variants

Tints

#FF684A · #FF8A71 · #FFA793 · #FFC1B3 · #FFDAD1

Shades

#D32C00 · #A92100 · #811600 · #5B0B00 · #380200

Muted

#EB583A · #D56C56 · #BE7C6D

Using Coquelicot

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.