Heartwarming `#BF1818`

Heartwarming (#BF1818) is a mid-tone, saturated red with an OKLCH hue of 28°, lightness 0.51 and chroma 0.198. 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	`#BF1818`
RGB	`rgb(191, 24, 24)`
HSL	`hsl(0, 78%, 42%)`
HSV	`hsv(0, 87%, 75%)`
CMYK	`cmyk(0%, 87%, 87%, 25%)`
CIE Lab	`lab(40.9 61.7 45.5)`
OKLCH	`oklch(0.514 0.198 28)`

How Heartwarming behaves under real light

Under warm 2700K interior light Heartwarming 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): → #bf0f13 — ΔE 0.6, is virtually unchanged
Neutral LED (4000K task and retail lighting): → #c21516 — ΔE 0.6, is virtually unchanged
Daylight (6500K standard daylight (reference)): → #bf1818 — ΔE 0.0, is virtually unchanged
Blue-sky shade (cool daylight (~10000K proxy)): → #c01919 — ΔE 0.2, is virtually unchanged

Test Heartwarming 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 6.25:1 and against black 3.36:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text.

Colors that go with Heartwarming

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.

#ff9e91 · #ec6457 · #bf1818 · #960006 · #5d0002 · #2a0000

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.

#ca7000 · #c54e00 · #bf1818 · #a2003b · #820049 · #62004d

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.

#e7ba6d · #d39600 · #a47d38 · #bf1818 · #910108 · #640002

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.

#00ddf3 · #a97a74 · #bf1818 · #792c25 · #53100d · #2a0202

Quiet Support

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

#ddf8fc · #987974 · #bf1818 · #415254 · #331613 · #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 · #8ea1a4 · #0f2a2e · #00070a · #bf1818

Complementary

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

#d2d6b1 · #2fa7ee · #a5647f · #bf1818 · #3f547d · #060a33

Split-complementary

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

#d6faff · #009781 · #bf1818 · #00547b · #002720 · #00050f

Triadic

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

#d8fedc · #269a46 · #bf1818 · #233ab8 · #09006c · #000200

Tetradic

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

#eef8cb · #7b8c00 · #bf1818 · #005963 · #2a0055 · #000304

Tints, shades & muted variants

Tints

#D1483E · #E16B5E · #F18B7E · #FFAA9F · #FFCFC8

Shades

#A30109 · #850005 · #670002 · #4B0001 · #310000

Muted

#AF3830 · #9E4A41 · #8C5750

Using Heartwarming

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.